Contents
Precautions
Operating Precautions
User Maintenance
Battery
Mobile Link Precautions
Before Getting Started...
General Guide
Watch Face Items
Navigating Between Modes
Mode Overview
Using the Crown
Hand and Day Indicator Movement
Shifting the Hands
Charging
Viewing the Face in the Dark
Useful Features
Linking with a Phone
Getting Ready
Auto Time Adjustment
Viewing Diving Log Data
Specifying a Port
Configuring World Time Settings
Setting the Alarm
Configuring Timer Settings
Adjusting Hand and Day Indicator Alignment
Phone Finder
Configuring Watch Settings
Changing the Home City Summer Time Setting
Connection
Connecting with a Phone
Unpairing
If you purchase another phone
Time Adjustment
Time Adjustment Using a Time Signal
Overview
Appropriate Signal Reception Location
Time Calibration Signal Reception
Ranges
Auto Time Calibration Signal Receive
Manual Time Calibration Signal Receive
Signal Reception Precautions
Using Watch Operations to Adjust the Time
Setting
Checking the Last Time Adjustment Result
Using the Watch in a Medical Facility or
Aircraft
Dual Time
Using the CASIO WATCHES Phone App to
Configure World Time Settings
Selecting a Time Zone
Configuring the Summer Time Setting (Dual
Time)
Swapping the Home City Time and World Time
(Dual Time)
Alarm
Using the CASIO WATCHES Phone App to
Configure Alarm Settings
Configuring Alarm Settings
Turning Off the Alarm
International Travel
Using the Diving Function
Measuring Elapsed Dive Time
Measuring Elapsed Surface Interval
Exiting the Dive Mode
Viewing Diving Log Data
Deleting Diving Log Data
Tide Level
Specifying a Port
Checking the Current Tide Level in the
Specified Port
Adjusting High Tide Times
Stopwatch
Measuring Elapsed Time
Timer
Using the CASIO WATCHES Phone App to
Configure Timer Settings
Setting the Timer Start Time
Using the Timer
Adjusting Hand and Day
Indicator Alignment
Using the CASIO WATCHES Phone App to
Adjust Hand and Day Indicator Alignment
Adjusting Hand and Day Indicator Alignment
Other Settings
Resetting Watch Settings
Other Information
City (Time Zone) List
Supported Phones
Specifications
Copyrights and Registered Copyrights
Troubleshooting
Watch Operation Guide 5702
1
MA2310-EB
OPUM-H
© 2023 CASIO COMPUTER CO., LTD.
Precautions
Operating Precautions
●
Water Resistance
●
A diver’s watch is designed to withstand
pressure up to 200 meters. Do not wear this
watch at depths greater than the depth
marked on it. It can be worn while skin
diving, scuba diving, etc. Do not use a
diver’s watch for deep diving (diving with a
gas mixture) or at a depth greater than that
indicated.
●
Do not operate the crown while the watch is
submerged.
●
After submersion in seawater, use plain
water to rinse all salt and dirt from your
watch.
●
To maintain water resistance, be sure to
have the gaskets of your watch replaced
regularly (once every two years).
●
A trained technician will inspect your watch
for proper water resistance whenever you
have its battery replaced. Battery
replacement requires the use of special
tools. Always request battery replacement
from your original retailer or from an
authorized CASIO service center.
●
Your diver’s watch has been tested in
accordance with International Organization
for Standardization regulations.
●
Precautions before Diving
●
Check to make sure that all watch functions
are working properly.
●
Check to make sure the battery is charged
sufficiently.
ー
If the battery is low or dead, charge it
before using the watch for diving.
●
Avoid over use of display illumination while
diving. Overuse of illumination may cause
the watch to exit the Dive Mode or may
cause hand movement to stop in order to
protect watch operation. This can also
cause all watch operation to be momentarily
disabled.
●
Check to make sure that the current time
setting is correct.
●
Check the watch glass for scratching,
cracking, fogging, and other abnormalities.
●
Check the case and band for damage and
other abnormalities. Also, ensure that the
band is securely tightened.
●
Precautions while Diving
●
Take care so your watch does not come into
contact with rocks and other hard items.
●
Band
●
Tightening the band too tightly can cause
you to sweat and make it difficult for air to
pass under the band, which can lead to skin
irritation. Do not fasten the band too tightly.
There should be enough room between the
band and your wrist so you can insert your
finger.
●
Deterioration, rust, and other conditions can
cause the band to break or come off of your
watch, which in turn can cause band pins to
fly out of position or to fall out. This creates
the risk of your watch falling from your wrist
and becoming lost, and also creates the risk
of personal injury. Always take good care of
your band and keep it clean.
●
Immediately stop using a band if you even
notice any of the following: loss of band
flexibility, band cracks, band discoloration,
band looseness, band connecting pin flying
or falling out, or any other abnormality. Take
your watch to your original retailer or to a
CASIO service center for inspection and
repair (for which you will be charged) or to
have the band replaced (for which you will
be charged).
●
Temperature
●
Never leave your watch on the dashboard
of a car, near a heater, or in any other
location that is subject to very high
temperatures. Do not leave your watch
where it will be exposed to very low
temperatures. Temperature extremes can
cause your watch to lose or gain time, to
stop, or otherwise malfunction.
●
Impact
●
Your watch is designed to withstand impact
incurred during normal daily use and during
light activity such as playing catch, tennis,
etc. Dropping your watch or otherwise
subjecting it to strong impact, however, can
lead to malfunction. Note that watches with
shock-resistant designs (G‑SHOCK,
BABY‑G, G‑MS) can be worn while
operating a chain saw or engaging in other
activities that generate strong vibration, or
while engaging in strenuous sports
activities (motocross, etc.)
●
Magnetism
●
The hands of analog and combination
(analog-digital) watches are moved by a
motor that uses magnetic force. When such
a watch is close to a device (audio
speakers, magnetic necklace, cell phone,
etc.) that emits strong magnetism, the
magnetism can cause timekeeping to slow
down, speed up, or stop, resulting in the
incorrect time being displayed.
●
Very strong magnetism (from medical
equipment, etc.) should be avoided
because it can cause malfunction of your
watch and damage to electronic
components.
●
Electrostatic Charge
●
Exposure to very strong electrostatic
charge can cause your watch to display the
wrong time. Very strong electrostatic
charge even can damage electronic
components.
●
Chemicals
●
Do not allow your watch to come into
contact with thinner, gasoline, solvents,
oils, or fats, or with any cleaners, adhesives,
paints, medicines, or cosmetics that contain
such ingredients. Doing so can cause
discoloration of or damage to the resin
case, resin band, leather, and other parts.
●
Storage
●
If you do not plan to use your watch for a
long time, thoroughly wipe it free of all dirt,
sweat, and moisture, and store it in a cool,
dry place.
●
Resin Components
●
Allowing your watch to remain in contact
with other items or storing it together with
other items for long periods while it is wet
can cause color on resin components to
transfer to the other items, or the color of the
other items to transfer to the resin
components of your watch. Be sure to dry
off your watch thoroughly before storing it
and make sure it is not in contact with other
items.
●
Leaving your watch where it is exposed to
direct sunlight (ultraviolet rays) for long
periods or failure to clean dirt from your
watch for long periods can cause it to
become discolored.
●
Friction caused by certain conditions
(strong external force, sustained rubbing,
impact, etc.) can cause discoloration of
painted components.
●
If there are printed figures on the band,
strong rubbing of the printed area can cause
discoloration.
●
Leaving your watch wet for long periods can
cause fluorescent color to fade. Wipe the
watch dry as soon as possible after it
becomes wet.
●
Semi-transparent resin parts can become
discolored due to sweat and dirt, and if
exposed to high temperatures and humidity
for long periods.
●
Daily use and long-term storage of your
watch can lead to deterioration, breaking, or
bending of resin components. The extent of
such damage depends on usage conditions
and storage conditions.
Watch Operation Guide 5702
2
●
Leather Band
●
Allowing your watch to remain in contact
with other items or storing it together with
other items for long periods while it is wet
can cause the color of the leather band to
transfer to the other items or the color of the
other items to transfer to the leather band.
Be sure to dry off your watch thoroughly with
a soft cloth before storing it and make sure
it is not in contact with other items.
●
Leaving a leather band where it is exposed
to direct sunlight (ultraviolet rays) for long
periods or failure to clean dirt from a leather
band for long periods can cause it to
become discolored.
CAUTION:
Exposing a leather band to rubbing or dirt
can cause color transfer and discoloration.
●
Metal Components
●
Failure to clean dirt from metal components
can lead to formation of rust, even if
components are stainless steel or plated. If
metal components exposed to sweat or
water, wipe thoroughly with a soft,
absorbent cloth and then place the watch in
a well-ventilated location to dry.
●
Use a soft toothbrush or similar tool to scrub
the metal with a weak solution of water and
a mild neutral detergent, or with soapy
water. Next, rinse with water to remove all
remaining detergent and then wipe dry with
a soft absorbent cloth. When washing metal
components, wrap the watch case with
kitchen plastic wrap so it does not come into
contact with the detergent or soap.
●
Bacteria and Odor Resistant Band
●
The bacteria and odor resistant band
protects against odor generated by the
formation of bacteria from sweat, which
ensures comfort and hygiene. In order to
ensure maximum bacteria and odor
resistance, keep the band clean. Use an
absorbent soft cloth to thoroughly wipe the
band clean of dirt, sweat, and moisture. A
bacteria and odor resistant band
suppresses the formation of organisms and
bacteria. It does not protect against rash
due to allergic reaction, etc.
●
Watch with Data Memory
●
Allowing the battery to go dead, replacing
the battery, or having your watch repaired
can cause all data in watch memory to be
lost. Note that CASIO Computer Co., Ltd.
assumes no responsibility for any damages
or losses caused by data lost due to
malfunction or repair of your watch,
replacement of the battery, etc. Be sure to
keep separate written copies of all
important data.
Note that CASIO Computer Co., Ltd.
assumes no responsibility for any
damage or loss suffered by you or any
third party arising through the use of your
watch or its malfunction.
User Maintenance
●
Caring for Your Watch
Remember that you wear your watch next to
your skin, just like a piece of clothing. To
ensure your watch performs at the level for
which it is designed, keep it clean by
frequently wiping with a soft cloth to keep your
watch and band free of dirt, sweat, water and
other foreign matter.
●
Whenever your watch is exposed to sea
water or mud, rinse it off with clean fresh
water.
●
For a metal band or a resin band with metal
parts, use a soft toothbrush or similar tool to
scrub the band with a weak solution of water
and a mild neutral detergent, or with soapy
water. Next, rinse with water to remove all
remaining detergent and then wipe dry with
a soft absorbent cloth. When washing the
band, wrap the watch case with kitchen
plastic wrap so it does not come into contact
with the detergent or soap.
●
For a resin band, wash with water and then
wipe dry with a soft cloth. Note that
sometimes a smudge like pattern may
appear on the surface of a resin band. This
will not have any effect on your skin or
clothing. Wipe with a cloth to remove the
smudge pattern.
●
Clean water and sweat from a leather band
by wiping with a soft cloth.
●
Not operating a watch crown, buttons, or
rotary bezel could lead to later problems
with their operation. Periodically rotate the
crown and rotary bezel, and press buttons
to maintain proper operation.
Watch Operation Guide 5702
3
●
Dangers of Poor Watch Care
Rust
●
Though the metal steel used for your watch
is highly rust-resistant, rust can form if your
watch is not cleaned after it becomes dirty.
ー
Dirt on your watch can make it impossible
for oxygen to come into contact with the
metal, which can lead to breakdown of
the oxidization layer on the metal surface
and the formation of rust.
●
Rust can cause sharp areas on metal
components and can cause band pins to fly
out of position or to fall out. If you ever notice
any abnormality immediately stop using
your watch and take it to your original
retailer or to an authorized CASIO service
center.
●
Even if the surface of the metal appears
clean, sweat and rust in crevasses can soil
the sleeves of clothing, cause skin irritation,
and even interfere with watch performance.
Premature Wear
●
Leaving sweat or water on a resin band or
bezel, or storing your watch an area subject
to high moisture can lead to premature
wear, cuts, and breaks.
Skin Irritation
●
Individuals with sensitive skin or in poor
physical condition may experience skin
irritation when wearing a watch. Such
individuals should keep their leather band
or resin band particularly clean. Should you
ever experience a rash or other skin
irritation, immediately remove your watch
and contact a skin care professional.
Battery
●
The special rechargeable battery used by
your watch is not intended to be removed or
replaced by you. Use of a rechargeable
battery other than the special one specified
for your watch can damage your watch.
●
The rechargeable (secondary) battery is
charged when the solar panel is exposed to
light, so it does not require regular
replacement as the primary battery
requires. Note, however, that long use or
operating conditions can cause the
capacity or charging efficiency of the
rechargeable battery to deteriorate. If you
feel that the amount of operation provided
by charging is too short, contact your
original retailer or CASIO service center.
Mobile Link Precautions
●
Legal Precautions
●
This watch complies with or has received
approval under the radio laws of various
countries and geographical areas. Using
this watch in an area where it does not
comply with or has not received approval
under applicable radio laws may be a
criminal offense. For details, visit the CASIO
Website.
https://world.casio.com/ce/BLE/
●
Use of this watch inside of aircraft is
restricted under the aviation laws of each
country. Be sure to follow the instructions of
airline personnel.
●
Precautions when using Mobile Link
●
When using this watch in combination with
a phone, keep the watch and phone close
to each other. A range of two meters is
recommended as a guideline, but the local
environment (walls, furniture, etc.), the
structure of a building, and other factors
may require a much closer range.
●
This watch can be affected by other devices
(electrical devices, audio-visual equipment,
office equipment, etc.) In particular, it can
be affected by operation of a microwave
oven. The watch may not be able to
communicate normally with a phone if a
microwave oven is operating nearby.
Conversely, this watch may cause noise in
radio reception and the video image of a TV.
●
Bluetooth of this watch uses the same
frequency band (2.4 GHz) as wireless LAN
devices, and use of such devices in close
proximity of this watch may result in radio
interference, slower communication
speeds and noise for the watch and the
wireless LAN device, or even
communication failure.
●
Stopping Radio Wave Emission by This
Watch
The watch emits radio waves while it is paired
with a phone.
When in a hospital, on an aircraft, or in any
other area where the use of radio waves is not
allowed, use the operation below to stop radio
wave generation.
●
Enable the watch’s Airplane Mode
l
Using the Watch in a Medical Facility or
Aircraft
Watch Operation Guide 5702
4
Before Getting
Started...
This section provides an overview of the watch
and introduces convenient ways it can be
used.
Important!
●
This watch is not a special-purpose
measuring instrument. Measurement
function readings are intended for
general reference only.
●
It can be used while skin diving, scuba
diving, etc.
l
Using the Diving Function
Watch Features
●
Phone Linking
The watch supports connection and
communication with a Bluetooth capable
phone.
●
Solar Charging
Sunlight and artificial light generate
electricity for watch operation as it charges.
●
Time Signal Reception
The watch receives a radio signal
containing time information and uses it to
keep its time setting accurate.
●
Dive Function
You can use this function to measure your
dive times and surface intervals. You can
also view dive logs, and record dates and
times. You can delete data as required.
●
Tide Level
You can check the current tide level in a port
that you specify.
●
Dual Time
Dual Time lets you keep track of the current
time in another time zone in addition to your
current location’s time.
●
Alarm
A beeper sounds when the alarm time you
set is reached.
●
Stopwatch
You can use the stopwatch to measure up
to 24 hours of elapsed time in 1-second
units.
●
Timer
Countdown from a start time specified by
you. An alarm sounds when the countdown
reaches zero.
Note
●
The illustrations included in this
operation guide have been created to
facilitate explanation. An illustration
may differ somewhat from the item it
represents.
General Guide
30
④
①②③
⑧⑥⑦⑤
⑩
⑨
A Hour hand
B Second hand
C Minute hand
D 24-hour hand
E Small hour hand
F Small minute hand
G Small 24-hour hand
H Day indicator
I Mode hand
J Crown
A button
Press this button to move the hands out of the
way for easy viewing of display information.
B button
Press to turn on illumination.
C button
Each press cycles between watch modes.
Holding down this button for at least one
second in any mode enters the Calendar
Mode.
D button
Pressing this button causes the second hand
to indicate the last receive operation result.
Watch Face Items
①
②
③
⑦
⑥
⑤
⑩
⑧
⑨
⑪
④
A [AL]
In the Alarm Mode, the mode hand points
to [AL].
B [TR]
In the Timer Mode, the mode hand points
to [TR].
C [ST]
In the Stopwatch Mode, the mode hand
points to [ST].
D Summer time setting
The mode hand points to the current
summer time setting.
E Day of week
In the Calendar Mode, the mode hand
points to the day of the week in the Home
City.
F [D]
In the Dive Mode, the mode hand points
to [D].
Watch Operation Guide 5702
5
G Tide Level
In the Tide Graph Mode, the mode hand
points to the current tide level in the
specified port.
H Alarm on/off setting
In the Alarm Mode, the second hand
indicates if the alarm is enabled or
disabled.
[ON]: Alarm enabled
[OFF]: Alarm disabled
I Last receive result, phone connection
status, Airplane Mode setting
The second hand points to the letter that
indicates the result of the last time
adjustment operation that was performed
by receipt of a time calibration signal when
the watch is not paired with a phone.
[Y(YES)]: Auto time adjustment
successful
[N(NO)]: Auto time adjustment failed
The second hand indicates the
connection status between the watch and
a phone when the watch is paired with a
phone.
[Y(YES)]: The watch is connected to your
phone.
[N(NO)]: The watch is not connected to
your phone.
The second hand indicates if auto time
adjustment (Airplane Mode) is enabled or
disabled.
[Y(YES)]: Auto time adjustment enabled
(Airplane Mode disabled)
[N(NO)]: Auto time adjustment disabled
(Airplane Model enabled)
J [C]
When connection with the phone starts,
the second hand will point to [C].
K [RC]
The second hand points to [RC] while time
calibration signal reception is in progress.
Navigating Between Modes
Press (C) to cycle between modes.
●
In any mode*, hold down (C) for at least one
second to enter the Calendar Mode.
●
In any mode*, hold down (C) for at least two
seconds to enter the Dive Mode.
* Besides Dive Mode.
CC
C
C
C
C
C
30
Dive Mode
(At least 2 seconds) (At least 2 seconds)
Tide Graph Mode
Timer Mode
Alarm Mode
Stopwatch Mode
Calendar Mode
Mode hand
●
Connecting with a Phone
Hold down (D) for at least 0.5 seconds until the
second hand points to [C].
D
30
30
After connectionBefore connection
Mode Overview
●
Calendar Mode
The main hour, minute, and second hands
indicate the current time.
The small hour and minute hands show
another time (Dual Time).
30
④⑤ ⑥
③
②①
Last Time
Adjustment Result
Hand Shift
A Current location time (24-hour time)
One revolution every 24 hours.
B Day of the week at current location
C Dual Time hour
D Dual Time minute
E Dual Time hour (24-hour hand)
The hand points to the A-side for a.m.
times, and to the P-side for p.m. times.
F Current location date
Time Adjustment Using a Time Calibration
Signal
Hold down (D) for at least 0.5 seconds until the
second hand points to [RC].
●
A manual time calibration signal receive
operation cannot be performed while the
watch is paired with a phone.
Swapping the Current Location Time and
Dual Time
Hold down (B) for at least three seconds.
Connecting with a Paired Phone to Adjust
the Watch’s Time
Hold down (D) for at least 0.5 seconds until the
second hand points to [C].
Searching for a Paired Phone
Hold down (D) for at least five seconds.
Watch Operation Guide 5702
6
●
Dive Mode
In this mode, the hour, minute, second and 24-
hour hands indicate the elapsed dive time and
surface interval time.
Dive time
●
To stop dive time measurement, hold down
(D) for at least two seconds.
●
Stopping dive time measurement starts
surface interval measurement.
30
30
③
②①
Measurement In
Progress
Measurement Start
Dive Time Measurement Start
A Dive time hours
This hand performs one revolution, which
indicates two hours of dive time.
Starting from 12 o’clock, this hand points
to 6 o’clock after one hour of dive time and
12 o’clock after two hours.
B Dive time minutes
The hour and minute hands move
together.
C Dive time seconds
Surface interval
●
To stop surface interval measurement,
press (D).
●
Stopping surface interval measurement
starts dive time measurement.
30
④
③
②①
A Surface interval hours (24-hour time)
This hand performs one revolution, which
indicates 24 hours of surface interval time.
Starting from 12 o’clock, this hand points
to 6 o’clock after 12 hours of surface
interval time and 12 o’clock after 24 hours.
B Surface interval hours
C Surface interval minutes
D Surface interval seconds
●
Tide Graph Mode
The small hour and minute hands indicate the
current time in the port you have specified.
●
The main hour, minute, and second hands
indicate the current time.
30
②
①
Hand Shift
A Tide Level
B Current time in selected port
●
Stopwatch Mode
The second hand, and the small hour and
minute hands indicate the elapsed stopwatch
time.
●
The main hour and minute hands indicate
the current time.
30
①
②③ ④
Start/Stop
Reset
A Stopwatch seconds
B Stopwatch hours
C Stopwatch minutes
D Stopwatch hours (24-hour time)
The hand points to the A-side for hours 0
through 12, and to the P-side for hours 12
through 24.
●
Timer Mode
The second hand, and the small hour and
minute hands indicate the current countdown
time.
●
The main hour and minute hands indicate
the current time.
30
①
②③ ④
Start/Stop
Reset
A Timer seconds
B Timer hours
C Timer minutes
D Timer hours (24-hour time)
The hand points to the A-side for hours 0
through 12, and to the P-side for hours 12
through 24.
●
Alarm Mode
The small hour and minute hands indicate the
alarm time.
The second hand indicates the alarm enabled/
disabled setting.
●
The main hour and minute hands indicate
the current time.
30
①
②③④
Hand Shift
Enabling/
Disabling the
Alarm
A Alarm enabled/disabled
B Alarm hour
C Alarm minute
D Alarm hour (24-hour time)
The hand points to the A-side for a.m.
times, and to the P-side for p.m. times.
Watch Operation Guide 5702
7
Using the Crown
The watch’s crown is a screw-in (screw lock)
type. To use the crown, you first need to rotate
it towards you (leftwards) to loosen it.
Loosen
Crown
Important!
●
To prevent loss of water resistance
and/or damage due to impact, be sure
to screw the crown in by rotating it
away from you as you push it in.
Screw in
●
When pushing the crown back in, take
care not to apply too much force.
●
Fast Forward/Fast Reverse
Second click
First click
Normal timekeeping
Crown
After pulling out the crown to the first or second
click, rotating it quickly in succession in either
direction will start a fast forward or fast reverse
operation. While a fast forward operation is in
progress, quickly rotating the crown in
succession again will increase the speed even
further.
●
Stopping Fast Forward/Fast Reverse
Rotate the crown in the direction opposite that
of the ongoing operation or press any button.
Note
●
If you do not perform any operation for
about two minutes after pulling out the
crown, crown operations will
automatically become disabled. If that
happens, push the crown back in and
then pull it out again.
Hand and Day Indicator
Movement
30
Mode hand
Day indicator
●
Mode Hand and Day Indicator
Movement
Changing the day setting of the watch will also
cause the mode hand to move.
●
Day
●
It can take anywhere from about 10 to 40
seconds for the day indicator to change
after timekeeping reaches midnight. The
mode hand moves as the day indicator
changes.
●
The day may not be indicated correctly
while the watch’s crown is pulled out.
Shifting the Hands
Hand shift moves the hands out of the way for
easy viewing of display information.
1. Press (A).
●
This will shift the hands to allow easier
reading of face information.
30
2. To return the hands to their normal
timekeeping positions, press (A) or (D), or
press (C) to change to another mode.
Note
●
If you leave the watch with its hands
shifted and do not perform any
operation for about ten seconds, the
hands will resume normal timekeeping
automatically.
Watch Operation Guide 5702
8
Charging
This watch runs on power supplied from a
rechargeable (secondary) battery that is
charged by a solar panel. The solar panel is
integrated into the face of the watch, and
power is generated whenever the face is
exposed to light.
●
Charging the Watch
When you are not wearing the watch, put it in
a location where it is exposed to bright light.
While you are wearing the watch, make sure
that its face (solar panel) is not blocked from
light by the sleeve of your clothing. Power
generation efficiency is reduced even when
the face of the watch is blocked only partially.
NOYES
Important!
●
Some light sources and environments
can cause the watch to become
extremely hot during charging, which
creates the risk of burn injury and
damage to internal watch
components.
Avoid charging the watch under
conditions like the ones described
below, where the temperatures may
exceed 60 °C (140 °F).
ー
On the dashboard of a vehicle
parked in the sun
ー
Near incandescent lamps, camera
lights, halogen lamps, or other
sources of heat
ー
In locations exposed to direct
sunlight for long periods and other
hot locations
●
Remaining Charge and Dead Battery
You can determine if the charge level is low by
checking the hand movement. Functions
become disabled as battery power goes low.
Important!
●
Should the battery go low or go dead,
expose the face (solar panel) to light as
soon as possible.
Note
●
Exposing the watch face to light after
the battery goes dead will cause the
second hand to revolve
counterclockwise until it stops at
second 57. This indicates charging
has started.
Low Battery Power
The second hand jumps at two-second
intervals.
30
Second hand
Dead Battery
All hands and the day indicator are stopped.
1
●
Charging Time Guidelines
The table below shows guidelines for
approximate charging times.
Charging Times Required for 1 Day of
Operation
Light Intensity Approximate Charging Time
High
p
Low
A
8 minutes
B
30 minutes
C
48 minutes
D
8 hours
Charge Recovery Times
Light Intensity
Approximate Charging Time
Charge Level
1
Charge Level
2
High
p
Low
A
2 hours 20 hours
B
5 hours 74 hours
C
7 hours 120 hours
D
73 hours -
Charge Level 1 :
Time from dead battery until watch operation
starts.
Charge Level 2 :
Time from watch operation start until a full
charge.
Light Intensity
A Sunny day, outdoors (50,000 lux)
B Sunny day, near a window (10,000 lux)
C Overcast day, near a window (5,000 lux)
D Indoor fluorescent lighting (500 lux)
Note
●
Actual charging time depends on the
charging environment, watch settings,
and other factors.
Watch Operation Guide 5702
9
●
Power Saving
If the watch is not moved for about one hour,
the connection with your phone will be
terminated and the watch will enter Level 1
power saving.
Also, leaving the watch in a dark location for
about one hour between the hours of 9 p.m.
and 6 a.m. will cause the second hand to stop,
and the watch will enter Level 2 power saving
(second hand sleep). If the watch is left in this
condition for six or seven days, all hands will
stop and the watch will enter Level 3 power
saving.
Level 1 :
Except for communication with a phone,
watch functions are operational.
Level 2 :
Basic timekeeping functions are operational.
Level 3 :
Only the day indicator is operational.
Note
●
Note that the watch also may enter the
power saving state if its face is blocked
from light by your sleeve while you are
wearing it.
●
The watch will enter power saving
when it is in one of the modes below.
ー
Calendar Mode
ー
Tide Graph Mode
ー
Stopwatch Mode (reset to all zeros)
ー
Timer Mode (timer start time
displayed)
●
Recovering from Power Saving
Operation
●
Use one of the operations below to exit
power saving.
ー
Press any button.
ー
Perform some crown operation.
ー
Angle the watch towards your face.
●
To go from Level 2 or Level 3 power saving
to Level 1 power saving, place the watch in
a brightly lit location.
Viewing the Face in the Dark
The watch has an LED light that you can use
to illuminate the display for about three
seconds for viewing in the dark. When turned
on, illumination becomes gradually brighter
and then gradually dimmer.
●
Turning On Illumination
Pressing (B) turns on the light.
30
●
Illumination will turn off automatically if an
alarm starts to sound.
●
Illumination is disabled while the hands are
moving at high speed.
●
The light may flicker when it turns on or off.
Useful Features
Pairing the watch with your phone makes a
number of the watch’s features easier to use.
Auto time adjustment
l
Auto Time Adjustment
12:30
Diving Log data transfer to your phone
l
Viewing Diving Log Data
Viewing of the tide level at a port you
specify with CASIO WATCHES
l
Specifying a Port
Selection of More Than 300 World Time
cities
l
Configuring World Time Settings
In addition, a number of other watch settings
can be configured using your phone.
To transfer data to a watch and to
configure settings, you first need to pair
the watch with your phone.
l
Getting Ready
●
Your phone needs to have the CASIO
“CASIO WATCHES” app installed to pair
with the watch.
Watch Operation Guide 5702
10
Linking with a Phone
While there is a Bluetooth connection
between the watch and phone (Mobile Link),
the watch’s current time setting is adjusted
automatically. You can also change the
watch’s other settings.
Note
●
This function is available only while
CASIO WATCHES is running on the
phone.
●
This section describes watch and
phone operations.
X
: Watch operation
Y
: Phone operation
Getting Ready
To use your watch in combination with a
phone, you first need to pair them. Perform the
steps below to pair the watch with a phone.
●
A
Install the required app on your
phone.
In Google Play or the App Store, search for the
“CASIO WATCHES” phone app and install it
on your phone.
●
B
Configure Bluetooth settings.
Enable the phone’s Bluetooth.
Note
●
For details about setting procedures,
see your phone documentation.
●
C
Pair the watch with a phone.
Before you can use the watch in combination
with a phone, you first need to pair them.
1. Move the phone to be paired with close to
(within one meter of) the watch.
2.
Y
Tap the “CASIO WATCHES” icon.
●
Tap on the “My Watch” tab. Next,
select the applicable product name.
3.
X
Hold down (D) for at least 2.5 seconds
until the second hand points to [C].
4.
Y
Perform the operation shown on the
screen of the phone to be paired with.
●
When a connection is established
between the watch and phone, the
second hand moves to [C].
●
If pairing fails, the watch returns to the
state it was in before starting this
procedure. Perform the pairing
procedure again from the beginning.
Note
●
The first time you start up CASIO
WATCHES phone app, a message will
appear on your phone asking if you
want to enable location information
acquisition. Configure settings to allow
background use of location
information.
Auto Time Adjustment
Your watch can connect with your phone to
adjust the watch’s time setting.
If you leave the watch in the Calendar Mode,
it will perform the adjustment operation
automatically as you go about your daily life
(as shown in the illustration), without any
operation required by you.
12:30
Important!
●
The watch may not be able to perform
auto time adjustment under the
conditions described below.
ー
While the watch is too far away from
its paired phone
ー
While communication is not possible
due to radio interference, etc.
ー
While the phone is updating its
system
ー
While the CASIO WATCHES phone
app is not running on the phone
ー
While the watch is in a power saving
state following approximately one
hour of non-use
Watch Operation Guide 5702
11
Note
●
If the watch does not indicate the
correct time even if it is able to connect
with a phone, adjust the hand and day
indicator positions.
l
Adjusting Hand and Day Indicator
Alignment
●
If there is a World Time City specified
with the CASIO WATCHES phone
app, its time will also be adjusted
automatically.
●
Auto time adjustment is performed at
the times described below.
ー
After your phone’s time zone or
summer time setting is changed
ー
After 24 hours or more have passed
since the last time adjustment using
Bluetooth connection
ー
After 24 hours or more have passed
since city swapping using CASIO
WATCHES or watch operation
ー
After 24 hours or more have passed
since the last home city change or
time adjustment using watch
operation
●
Watch operation can be performed
even while it is connected with your
phone.
●
Triggering Immediate Time Adjustment
The watch’s time setting will be adjusted
automatically whenever you establish a
connection between the watch and a phone.
Whenever you want to trigger immediate time
adjustment, perform the procedure below to
connect with a phone.
1. Move the phone close to (within one meter
of) the watch.
2.
X
Enter the Calendar Mode.
l
Navigating Between Modes
3.
X
Hold down (D) for at least 0.5 seconds
until the second hand points to [C].
Release the button as soon as the second
hand points to [C].
When the watch connects with a phone,
the second hand will normally move to
[Y(YES)] and then the watch’s time setting
will be adjusted.
30
Viewing Diving Log Data
You can use CASIO WATCHES to view Diving
Log data.
●
The items below can be viewed.
ー
Dive start date and time
ー
Dive time
ー
Surface interval
ー
Location information
Check the connection
●
Enter the Calendar Mode and then
press (D). Next, check to make sure that
the second hand is pointing to [Y(YES)].
●
If the second hand is not pointing to
[Y(YES)], refer to the information at the
link below.
l
Connecting with a Phone
1.
Y
Tap the “CASIO WATCHES” icon.
2.
Y
Perform the operation shown on the
phone screen to view Diving Log data.
Specifying a Port
After you use CASIO WATCHES to specify a
port, you can use the watch to view the current
time and tide level at the port.
Check the connection
●
Enter the Calendar Mode and then
press (D). Next, check to make sure that
the second hand is pointing to [Y(YES)].
●
If the second hand is not pointing to
[Y(YES)], refer to the information at the
link below.
l
Connecting with a Phone
Note
●
You can use CASIO WATCHES to
specify any one of 3,300 points around
the world as the port.
1.
Y
Tap the “CASIO WATCHES” icon.
2.
Y
Perform the operation shown on the
phone screen to specify a port.
Configuring World Time
Settings
Specifying a World Time City with CASIO
WATCHES causes the watch’s World Time
City to change accordingly. The standard
time/summer time setting of the World Time
will be adjusted automatically without any
watch operation required by you.
Check the connection
●
Enter the Calendar Mode and then
press (D). Next, check to make sure that
the second hand is pointing to [Y(YES)].
●
If the second hand is not pointing to
[Y(YES)], refer to the information at the
link below.
l
Connecting with a Phone
3
0
Note
●
The CASIO WATCHES phone app
World Time lets you select from among
approximately 300 cities as the World
Time City.
Watch Operation Guide 5702
12
●
To select a World Time City
1.
Y
Tap the “CASIO WATCHES” icon.
2.
Y
Perform the operation shown on the
phone screen. The World Time setting will
be reflected on the watch.
●
You can determine whether a World
Time is a.m. or p.m. by checking the
position of the small 24-hour hand.
30
World Time hour (24-hour)
World Time hour and minute
●
Configuring the Summer Time Setting
1.
Y
Tap the “CASIO WATCHES” icon.
2.
Y
Perform the operation shown on the
phone screen to select a summer time
setting.
●
“Auto”
The watch switches between standard
time and summer time automatically.
●
“OFF”
The watch always indicates standard
time.
●
“ON”
The watch always indicates summer
time.
Note
●
While the summer time setting is
“Auto”, the watch will switch between
standard time and summer time
automatically. You do not need to
switch between standard time and
summer time manually. Even if you are
in an area that does not observe
summer time, you can leave the
watch’s summer time setting as “Auto”.
●
Changing the time setting manually
with a watch operation will cancel auto
standard time/summer time switching.
●
CASIO WATCHES screen shows
information about summer time
periods.
●
Swapping Your World Time and Home
Time
1.
Y
Tap the “CASIO WATCHES” icon.
2.
Y
Perform the operation shown on the
phone screen to swap your Home Time
with your World Time.
For example, if your Home City is Tokyo
and the World Time City is New York, they
will be swapped as shown below.
30
30
World Time City
(New York)
World Time City
(Tokyo)
Home City (New York)
Home City (Tokyo)
After swappingBefore swapping
Note
●
Auto time adjustment does not work for
24 hours after swapping of the Home
Time and World Time.
Setting the Alarm
Check the connection
●
Enter the Calendar Mode and then
press (D). Next, check to make sure that
the second hand is pointing to [Y(YES)].
●
If the second hand is not pointing to
[Y(YES)], refer to the information at the
link below.
l
Connecting with a Phone
1.
Y
Tap the “CASIO WATCHES” icon.
2.
Y
Perform the operation shown on the
phone screen to configure alarm time
settings.
●
Change the alarm setting from off to on.
●
Set the hour and minute of the alarm
time.
Configuring Timer Settings
Check the connection
●
Enter the Calendar Mode and then
press (D). Next, check to make sure that
the second hand is pointing to [Y(YES)].
●
If the second hand is not pointing to
[Y(YES)], refer to the information at the
link below.
l
Connecting with a Phone
1.
Y
Tap the “CASIO WATCHES” icon.
2.
Y
Perform the operation shown on the
phone screen to configure the timer time
setting.
●
Set the hours and minutes of the timer
start time.
Adjusting Hand and Day
Indicator Alignment
If the hands and/or day indicator are out of
alignment even though auto time adjustment
is being performed, use CASIO WATCHES to
adjust them.
Check the connection
●
Enter the Calendar Mode and then
press (D). Next, check to make sure that
the second hand is pointing to [Y(YES)].
●
If the second hand is not pointing to
[Y(YES)], refer to the information at the
link below.
l
Connecting with a Phone
1.
Y
Tap the “CASIO WATCHES” icon.
2.
Y
Perform the operation shown on the
phone screen to correct hand and day
indicator alignment.
Watch Operation Guide 5702
13
Phone Finder
You can use phone finder to trigger a tone on
the phone to make it easy to find. The tone is
forced to sound even if the phone is in vibrate
mode.
Important!
●
Phone finder will not sound the tone
unless the CASIO WATCHES phone
app is running on the phone.
●
Do not use this function in areas where
phone call tones are restricted.
●
The tone sounds at a high volume. Do
not use this function when listening to
phone output over earphones.
1.
X
In any mode other than the Calendar
Mode, hold down (C) for at least one
second to enter the Calendar Mode.
2.
X
Hold down (D) for at least five seconds
until the second hand points to [C].
A connection will be established between
the watch and phone, and then the
phone’s ringtone will sound.
●
It will take a few seconds before the
phone tone sounds.
3.
X
Press any button to stop the tone.
●
You can press any watch button to stop
the phone tone, but only during the first
30 seconds after it starts to sound.
Configuring Watch Settings
After establishing a connection between the
watch and a phone, you can use CASIO
WATCHES to configure watch settings and to
view information acquired by the watch.
Check the connection
●
Enter the Calendar Mode and then
press (D). Next, check to make sure that
the second hand is pointing to [Y(YES)].
●
If the second hand is not pointing to
[Y(YES)], refer to the information at the
link below.
l
Connecting with a Phone
1.
Y
Tap the “CASIO WATCHES” icon.
2.
Y
Select the setting you want to change
and then perform the operation shown on
the phone screen.
Changing the Home City
Summer Time Setting
Check the connection
●
Enter the Calendar Mode and then
press (D). Next, check to make sure that
the second hand is pointing to [Y(YES)].
●
If the second hand is not pointing to
[Y(YES)], refer to the information at the
link below.
l
Connecting with a Phone
1.
Y
Tap the “CASIO WATCHES” icon.
2.
Y
Perform the operation shown on the
phone screen to change your Home City
summer time setting.
Connection
Connecting with a Phone
Your watch can connect with a phone that is
paired with it.
●
If the watch is not paired with the phone you
want to connect with, refer to the information
below and pair them.
l
C
Pair the watch with a phone.
●
Connecting with a Phone
1. Move the phone close to (within one meter
of) the watch.
2.
X
Hold down (D) for at least 0.5 seconds
until the second hand points to [C].
This establishes a connection between
the watch and phone.
●
Once the watch and phone are
connected, the connection is
maintained.
Important!
●
If you have problems establishing a
connection, it could mean that CASIO
WATCHES is not running on your
phone. On your phone’s home screen,
tap the “CASIO WATCHES” icon. After
the app starts up, hold down the
watch’s (D) button for at least 0.5
seconds.
Unpairing
Unpairing the watch from a phone requires
both CASIO WATCHES phone app and watch
operations.
Note
●
If you are using an iPhone, also delete
the pairing information stored on the
phone.
●
Deleting Pairing Information from the
CASIO WATCHES phone app
1.
Y
Tap the “CASIO WATCHES” icon.
2.
Y
Perform the operation shown on the
phone screen to unpair.
Watch Operation Guide 5702
14
●
Deleting Pairing Information from the
Watch
1.
X
Hold down (C) for at least one second
to enter the Calendar Mode.
2.
X
Loosen the crown and then pull it out to
the second click.
The second hand will point to the currently
selected time zone.
●
The mode hand will point to the summer
time setting for the currently selected
Home City.
30
Time zone
Summer time setting
Crown
3.
X
Hold down (D) for at least 10 seconds.
This deletes the pairing information. The
second hand will point to [C].
30
4.
X
Push the crown back in and then lock it.
●
iPhone Only
Deleting the phone’s pairing
information
For details about setting procedures, see your
phone documentation.
“Settings”
n
“Bluetooth”
n
Cancel the
watch’s device registration.
If you purchase another phone
You need to perform the pairing operation
whenever you want to establish a Bluetooth
connection with a phone for the first time.
l
Deleting Pairing Information from the
Watch
l
C
Pair the watch with a phone.
Time Adjustment
Your watch can obtain date and time
information by connecting with a phone and by
receiving time signals, which it uses to adjust
its settings.
Important!
●
When you are on an aircraft or in any
other location where radio signals may
cause problems, enable the watch’s
Airplane Mode to disable connection
with your phone.
l
Using the Watch in a Medical
Facility or Aircraft
Referring to the information below, configure
the time setting in accordance with the method
that suits your own lifestyle.
Do you use a phone?
Time adjustment by connecting with your
phone is recommended.
l
Auto Time Adjustment
12:30
Can you receive a time signal in your area?
While the watch’s Home Time City setting
is one where a time signal can be
received, the watch’s time and day
settings can be adjusted in accordance
with the signal.
l
Time Calibration Signal Reception
Ranges
l
Selecting Your Home City’s Time Zone
Other than the above.
If you are unable to connect with a phone
and are unable to receive a time signal,
you can perform watch button operations
to adjust its time setting.
l
Using Watch Operations to Adjust the
Time Setting
Watch Operation Guide 5702
15
Time Adjustment Using a
Time Signal
Overview
The watch’s time and day settings can be
configured in accordance with a received time
calibration signal.
Important!
●
In order to make it possible for the
current time setting to be adjusted
correctly based on time calibration
signal reception, you need to specify
the time zone where you are using the
watch.
●
If the watch was unable to connect with
a phone even once for time adjustment
during the previous day while
connection with a phone is being used,
it will automatically try to receive a time
calibration signal.
●
When you are on an aircraft or in any
other location where radio signals may
cause problems, enable the watch’s
Airplane Mode to disable connection
with your phone.
l
Using the Watch in a Medical
Facility or Aircraft
Note
●
Areas where time calibration signal
reception is supported are limited.
When the watch is in an area where
time calibration signal reception is not
possible, connect with a phone to
adjust time and day settings.
l
Time Calibration Signal Reception
Ranges
●
If the watch does not indicate the
correct time even after it receives a
time calibration signal, correct the
hand and day indicator positions.
l
Using CASIO WATCHES to Adjust
l
Using Watch Operations to Adjust
Appropriate Signal Reception
Location
A time calibration signal can be received while
the watch is near a window.
●
Position the watch so its 12 o’clock side is
facing the window.
●
Keep metal objects away from the watch.
●
Do not move the watch.
●
Do not perform any operation on the watch.
12 o'clock
Note
●
You may experience time calibration
signal reception problems in the areas
described below.
ー
Among or near buildings
ー
While riding in a vehicle
ー
Near household appliances, office
machines, mobile phones, etc.
ー
On a construction site, in an airport,
or any other location where radio
wave interference occurs
ー
Near high-voltage lines
ー
In mountainous areas or behind a
mountain
Time Calibration Signal Reception
Ranges
●
Japan (JJY)
The Japan time signal radio stations are
located on Mt. Otakadoya in Fukushima and
Mt. Hagane in Fukuoka/Saga.
The reception range of the Japanese time
signals is approximately 1,000 km from each
transmission station.
●
China (BPC)
The China time signal radio station is located
in Shangqiu, Henan Province, China.
The reception range of the Chinese time
signal is approximately 1,500 km from the
transmission station.
●
United States (WWVB)
The United States time signal radio station is
located in Fort Collins, Colorado.
The reception range of the U.S. time signal is
approximately 3,000 km from the transmission
station.
●
U.K. (MSF)/Germany (DCF77)
The U.K. time signal radio station is located in
Anthorn, Cumbria.
The German time signal radio station is
located in Mainflingen, southeast of Frankfurt.
The reception range of the U.K. and German
time signals is approximately 1,500 km from
each transmission station.
Note
●
Even if you are within the normal
reception range of a time calibration
signal, reception may be made
impossible by the following factors:
geographic contours, weather, the
season, the time of day, wireless
noise.
Watch Operation Guide 5702
16
Auto Time Calibration Signal
Receive
An automatic time calibration signal receive
operation is performed and the time and day
settings are adjusted between midnight and
5:00 a.m. Once a signal receive operation is
successful, no more auto receive operations
are performed that day.
Important!
●
Time calibration signal auto receive is
disabled while the watch is paired with
a phone for auto time adjustment.
However, time signal auto receive will
be performed if there has been no auto
time adjustment based on connection
between the watch and phone for more
than one day.
1. Enter the Calendar Mode.
l
Navigating Between Modes
2. Place the watch near a window or some
other location appropriate for signal
reception.
●
The second hand points to [RC] while
the receive operation in progress.
●
When the receive operation is
successful, the time and day settings
will be adjusted automatically.
Note
●
The receive operation takes anywhere
from about two minutes to about 10
minutes. It can take as long as 20
minutes.
Manual Time Calibration Signal
Receive
Important!
●
A manual time calibration signal
receive operation cannot be
performed while the watch is paired
with a phone. When you want to
perform a manual time calibration
signal receive operation, unpair the
watch from your phone.
l
Unpairing
1. Place the watch near a window or some
other location appropriate for time signal
reception.
2. Enter the Calendar Mode.
l
Navigating Between Modes
3. Hold down (D) for at least 0.5 seconds
until the second hand points to [RC].
This indicates that the receive operation
has started. After the receive operation is
complete, the watch’s time and day
settings will be adjusted accordingly.
30
Note
●
The receive operation takes anywhere
from about two minutes to about 10
minutes. It can take as long as 20
minutes.
●
Time calibration signal reception is
better at night than during the day.
●
A time calibration signal cannot be
received while the city selected as your
Home City is one that does not support
signal reception.
Signal Reception Precautions
●
When the watch is unable to adjust its time
in accordance with a calibration signal for
some reason, average timekeeping
accuracy is within ±15 seconds per month.
●
Note that an internal decoding process the
watch performs after it receives a signal
may cause the time setting to be slightly off
(by less than one second).
●
Time calibration signal reception is not
possible under the conditions described
below.
ー
While battery power is low
ー
In any mode besides the Calendar Mode
ー
While the watch is at Level 3 power
saving
ー
While the crown is pulled out
ー
While a timer countdown operation is in
progress
ー
While the Home City setting is a time zone
where time signal reception is not
possible
ー
While the watch is outside the time signal
reception range
ー
While the Airplane Mode is enabled
●
When the receive operation is successful,
the time and/or day settings will be adjusted
automatically. Summer time will not be
applied correctly in the case described
below.
ー
When the summer time start date and
time, end date and time, or other rules are
changed by authorities
●
If your watch is connected with a phone,
settings must be configured so CASIO
WATCHES can acquire location
information. Even if you are in an area that
is within the reception range of a time signal,
reception will not be performed if settings
are configured in a way that makes signal
reception impossible.
●
As of July 2022, China does not observe
summer time. If China starts to observe
summer time in the future, the time
displayed by the watch for China may not be
correct.
Watch Operation Guide 5702
17
Using Watch Operations to
Adjust the Time Setting
If your watch cannot connect with a phone for
some reason, you can use watch operations
to adjust date and time settings.
●
Selecting Your Home City’s Time Zone
Use the procedure in this section to select the
time zone of the city you want to use as your
Home City.
Important!
●
If you do not specify the time zone
where you are using the watch, the
current time setting will not be correct
after it is adjusted based on a time
calibration signal.
1. Loosen the crown and then pull it out to the
second click.
The second hand indicates the currently
selected time zone, while the mode hand
indicates the current summer time setting.
●
The time zone is indicated as a time
offset. ±0 hours is indicated when the
second hand is at 12 o’clock, with other
offsets indicated when it is to the left and
right of 12 o’clock. For information about
time zone positions, go to the section
below.
l
City (Time Zone) List
Tokyo (+9 offset)
30
Summer time setting
Crown
Time zone (9 position)
2. Rotate the crown to change the time zone.
3. Push the crown back in and then lock it.
●
Adjusting the Time and Day Setting
1. Loosen the crown and then pull it out to the
second click.
The second hand will point to the currently
selected time zone.
●
The mode hand will point to the summer
time setting for the currently selected
Home City.
30
Time zone
Summer time setting
Crown
2. Hold down (C) for at least one second.
This causes the second hand to move to
12 o’clock, and enables the minute setting
operation.
3. Rotate the crown to change the minute
setting.
4. Press (C).
The hour hand will move slightly,
indicating that the hour setting operation
is enabled.
5. Rotate the crown to change the hour
setting.
6. Press (C).
This enables the year ten’s digit setting
operation.
7. Rotate the crown to move the second
hand to the desired setting for the year
ten’s digit.
80 40
90
30
20
50
70
10
60
00
Year (10’s digit)
8. Press (C).
This enables the year one’s digit setting
operation.
9. Rotate the crown to move the second
hand to the desired setting for the year
one’s digit.
84
9
3
2
5
7
1
6
0
Year (one’s digit)
10. Press (C).
This enables the month setting operation.
11. Rotate the crown to change the month.
10
11
12
84
9
3
2
5
7
1
6
Month
12. Press (C).
The mode hand will move slightly,
indicating that the day setting operation is
enabled.
●
Changing the day setting will cause the
mode hand to rotate repeatedly.
l
Hand and Day Indicator Movement
13. Rotate the crown to change the day.
30
Day
14. On a time signal at the top of a minute,
push the crown back in and lock it.
Watch Operation Guide 5702
18
●
Configuring the Summer Time Setting
(Home City)
The watch’s current time setting can be
changed to summer time when required.
[STD]: The watch always indicates standard
time.
[DST]: The watch always indicates summer
time.
Important!
●
If the Home City time zone is an area
where time calibration signal reception
is possible, you can select [AT] (Auto)
for the summer time setting. While [AT]
is specified as the summer time
setting, the first time calibration signal
receive operation after the Home City
enters the summer time period will
cause the watch’s time setting to
switch to summer time. The first time
calibration signal receive operation
after the end of the summer time period
is reached will cause the watch’s time
setting to switch to standard time.
For information about areas where
time calibration signals can be
received, go to the section below.
l
City (Time Zone) List
1. Loosen the crown and then pull it out to the
second click.
The second hand will point to the currently
selected time zone.
●
The mode hand will point to the summer
time setting for the currently selected
Home City.
30
Time zone
Summer time setting
Crown
2. Hold down (B) for at least one second.
Each time you hold down (B) for at least
one second, the summer time setting will
cycle to the next available option.
3
0
3. Push the crown back in and then lock it.
Checking the Last Time
Adjustment Result
1. Enter the Calendar Mode.
l
Navigating Between Modes
2. Press (D).
The second hand will indicate the last time
adjustment operation result. The watch
hands will return to indicating the current
time if you do not perform any operation
for nine or ten seconds.
[Y(YES)]: Last time adjustment operation
successful.
[N(NO)]: Last time adjustment operation
failed.
30
Second hand
Note
●
Even if there was a successful time
calibration signal receive operation or
connection with a phone, the second
hand will point to [N(NO)] if you
adjusted the time and/or date setting
manually.
●
The time calibration signal receive
result will not be indicated after the
watch is paired with a phone.
Using the Watch in a Medical
Facility or Aircraft
When you are in a hospital, on an aircraft, or
in any other location where auto time signal
reception or connection with a phone may
cause problems, enable the watch’s Airplane
Mode. To disable the watch’s Airplane Mode,
perform the same operation again.
1. Enter the Calendar Mode.
l
Navigating Between Modes
2. Press (D).
The second hand will indicate the last
receive result for nine or ten seconds.
30
3. Within 10 seconds after you perform the
operation in step 2, loosen the crown and
then pull it out to the first click.
●
If more than 10 seconds elapse before
you pull out the crown after you perform
the operation in step 2, the second hand
will return to indicating seconds. If this
happens, perform step 2 again.
4. Rotate the crown to enable the Airplane
Mode.
[Y(YES)]: Airplane Mode disabled (Auto
time adjustment enabled)
[N(NO)]: Airplane Mode enabled (Auto
time adjustment disabled)
30
Crown
5. Push the crown back in and then lock it.
Watch Operation Guide 5702
19
Dual Time
Dual Time lets you look up the current time in
various time zones around the globe.
3
0
Using the CASIO WATCHES
Phone App to Configure
World Time Settings
If the watch is paired with a phone, you can
also use CASIO WATCHES to set the World
Time city.
l
Configuring World Time Settings
Note
●
World Time cities that can be selected
only by using CASIO WATCHES
cannot be selected using watch
operations.
Selecting a Time Zone
Use the procedure below to specify the time
zone where the city whose time you want to
use for Dual Time is located.
1. Enter the Calendar Mode.
l
Navigating Between Modes
2. Loosen the crown and then pull it out to the
first click.
The second hand indicates the current
Dual Time zone, while the mode hand
indicates the current Dual Time summer
time setting.
●
The time zone is indicated as a time
offset. ±0 hours is indicated when the
second hand is at 12 o’clock, with other
offsets indicated when it is to the left and
right of 12 o’clock. For information about
time zone positions, go to the section
below.
l
City (Time Zone) List
New York (-5 offset)
30
Crown
Time zone (55 position)
Summer time setting
3. Rotate the crown to change the time zone.
The Dual Time hour and minute hands
indicate the current time in the selected
time zone.
30
Dual Time hour and minute
Dual Time 24-hour
Crown
4. Push the crown back in and then lock it.
Configuring the Summer
Time Setting (Dual Time)
The watch’s current time setting can be
changed to summer time when required.
[STD]: The watch always indicates standard
time.
[DST]: The watch always indicates summer
time.
Important!
●
When the time zone for your Dual Time
is a region where time calibration
signal reception is possible, you will be
able to select [AT] (auto) for the
daylight saving time setting. However,
in order to have the Dual Time switch
to daylight saving time, you need to
swap it with your Home City time and
then perform a time calibration signal
receive operation.
l
Swapping the Home City Time and
World Time (Dual Time)
●
For information about areas where
time calibration signals can be
received, see the information below.
l
City (Time Zone) List
1. Enter the Calendar Mode.
l
Navigating Between Modes
2. Loosen the crown and then pull it out to the
first click.
The second hand will point to the currently
selected time zone.
●
The mode hand will point to the summer
time setting of the Dual Time.
30
Crown
Summer time setting
Time zone
Watch Operation Guide 5702
20
3. Hold down (B) for at least one second.
Each time you hold down (B) for at least
one second, the summer time setting will
cycle to the next available option.
30
4. Push the crown back in and then lock it.
Note
●
While [UTC] is selected as the city, you
will not be able to change or check the
summer time setting.
Swapping the Home City
Time and World Time (Dual
Time)
In the Calendar Mode, you can swap your
Home City time with your Dual Time by holding
down (B) for at least three seconds.
30
30
Dual Time Home Time
Dual Time
Home Time
After swappingBefore swapping
●
If a swapping operation causes a change in
the day indicator setting, the mode hand will
rotate repeatedly.
l
Hand and Day Indicator Movement
Note
●
This function comes in handy when
you need to move to another time
zone. For details about how to use it,
go to the section below.
l
International Travel
Alarm
The watch will beep when the alarm time is
reached.
●
The beeper is muted in the cases described
below.
ー
When battery power is low
ー
While the watch is at Level 3 power
saving
l
Power Saving
3
0
Using the CASIO WATCHES
Phone App to Configure
Alarm Settings
If the watch is paired with a phone, you can
also use CASIO WATCHES to set alarms.
l
Setting the Alarm
Configuring Alarm Settings
1. Enter the Alarm Mode.
l
Navigating Between Modes
2. Loosen the crown and then pull it out to the
first click.
This turns on the alarm.
3. Rotate the crown to change the alarm time
setting.
30
Crown
MinutesHours
Alarm on
4. Push the crown back in and then lock it.
Note
●
A beeper sounds for 10 seconds when
an alarm time is reached.
●
To stop the alarm
To stop the alarm after it starts to sound when
an alarm time is reached, press any button.
Turning Off the Alarm
To stop the alarm from sounding, perform the
steps below to turn it off.
●
To have the alarm sound again, turn it on.
1. Enter the Alarm Mode.
l
Navigating Between Modes
2. Press (D) to move the second hand to
OFF.
●
Each press of (D) toggles between on
and off.
30
Alarm off
Alarm on
Watch Operation Guide 5702
21
International Travel
When you enter another time zone, the watch
will adjust its time setting to your current
location in accordance with the time zone of
your phone. When you reach your destination,
disable the watch Airplane Mode.
3
0
1. When you reach your destination,
establish a connection between the watch
and your phone.
l
Using the Watch in a Medical Facility or
Aircraft
After you disable the watch’s Airplane
Mode, it will adjust its time setting to the
time in your current location.
●
If you want to trigger immediate time
adjustment, refer to the information at
the link below.
l
Triggering Immediate Time
Adjustment
Using the Diving
Function
You can use the procedures in this section to
keep track of your dive time and surface
interval. The watch automatically records
diving log data. There is memory for up to 30
diving log data records. Recording diving log
data when there are already 30 log data
records in memory will automatically cause
the oldest log record to be deleted to make
room for the new one.
30
●
You can use diving log data to view the
items below.
ー
Dive start date and time
ー
Dive time
ー
Surface interval
ー
Location information
You can use CASIO WATCHES to view
recorded diving log data.
l
Viewing Diving Log Data
Important!
●
Check to make sure the crown is
locked before using the watch for
diving.
●
If the battery is low or dead, charge it
before using the watch for diving.
●
Before starting a dive (while still on the
boat or on the water’s surface), enter
the Dive Mode.
●
Do not operate the crown while the
watch is wet.
●
Should battery power go low, the
watch will stop time measurement and
switch to the Calendar Mode.
●
Avoid over use of display illumination
while diving. Overuse of illumination
may cause the watch to exit the Dive
Mode or may cause hand movement to
stop in order to maintain watch
operation. This can also cause all
watch operation to be momentarily
disabled.
Measuring Elapsed Dive
Time
Dive time is measured in units of one second
up to 1 hour, 59 minutes, 59 seconds (2
hours).
●
Even if elapsed dive time measurement
continues for longer than the maximum dive
time of two hours, the hands will continue to
move for 24 hours.
1. Enter the Dive Mode.
l
Navigating Between Modes
The hour hand, minute hand, second
hand, and 24-hour hand will all move to 12
o’clock, which indicates that the watch is
ready to start dive time measurement.
2. Press (D).
This starts dive time measurement.
Example: Dive time measurement 5
minutes 26 seconds
30
Dive time minutes
Current time
Dive time seconds
Dive time hours (2 hours per rotation)
●
The hour and minute hands move
together.
3. Hold down (D) for at least two seconds to
stop dive time measurement.
This starts surface interval measurement.
Note
●
If the watch is in the Dive Mode,
loosening the crown and then pulling it
out to the first click will cause the
current elapsed dive time to be reset to
zero.
●
The period from the point you enter the
Dive Mode until you next enter the
Calendar Mode is treated as the same
dive.
●
To create a separate log record for a
dive such as when repetitive diving,
enter the Calendar Mode and then
return to the Dive Mode.
●
If you do not perform any watch
operation for about 24 hours after
starting dive time measurement,
measurement will stop and the hands
will return to 12 o’clock.
Watch Operation Guide 5702
22
Measuring Elapsed Surface
Interval
This function measures the time since your
last dive as surface interval time, which can be
used in preparation for repetitive diving.
Surface interval times up to 24 hours can be
measured.
1. Enter the Dive Mode.
l
Navigating Between Modes
2. Use the operations below to perform a
timer operation.
D
D
D
D
Surface Interval 1 start
(Hold down at least two seconds.)
Dive 1 start
Dive 2 start
Surface Interval 2 start
(Hold down at least two seconds.)
30
Surface interval minutes
Current time
Surface interval seconds
Surface interval hours
Surface interval hours (24 hours per rotation)
●
The second hand moves
counterclockwise.
Exiting the Dive Mode
Holding down (C) for at least two seconds in
the Dive Mode enters the Calendar Mode.
●
If you exit the Dive Mode while dive time or
surface interval time measurement is in
progress, the measurement operation will
stop and the watch will enter the Calendar
Mode.
Viewing Diving Log Data
When a diving log is acquired, diving log data
is automatically sent to CASIO WATCHES.
You can use CASIO WATCHES to view
recorded diving log data.
l
Using CASIO WATCHES to View Diving
Log Data
Note
●
The watch has memory for up to 30
diving log data records. Recording
diving log data when there are already
30 log data records in memory will
automatically cause the oldest log
record to be deleted to make room for
the new one.
Important!
●
If the watch is disconnected from the
phone, diving log data will be sent to
the phone’s CASIO WATCHES app
the next time they are re-connected.
●
You can use CASIO WATCHES to
view diving log data records. Note that
you cannot view diving log data
records using watch operations.
Deleting Diving Log Data
1. Enter the Dive Mode.
l
Navigating Between Modes
2. Loosen the crown and then pull it out to the
first click.
3. Hold down (D) for at least two seconds.
This deletes the diving log data.
4. Push the crown back in and then lock it.
Tide Level
You can use the watch to check the current
tide level in a port that you specify with CASIO
WATCHES.
Important!
●
Displayed information is intended for
reference only. Do not use it for
maritime navigation, etc.
●
To check a tide level, use CASIO
WATCHES to select the port whose
information you want to look up. Tide
level information will not be displayed
in the Tide Graph Mode unless you
have a port specified.
30
When there is no port specified
Specifying a Port
Use CASIO WATCHES to select the port
whose tide level information you want to view.
l
Specifying a Port
Important!
●
Use CASIO WATCHES to specify a
port. Note that you cannot configure
this setting using watch operations.
Watch Operation Guide 5702
23
Checking the Current Tide
Level in the Specified Port
Entering the Tide Graph Mode displays the
current time and tide conditions in the port you
specified with CASIO WATCHES.
1. Enter the Tide Graph Mode.
l
Navigating Between Modes
30
①②
③④
A Time in your current location
B Tide conditions in the specified port
C Current time in the specified port
D Current location date
Note
●
The tide level display is based on the
summer time setting of the port that
was specified when you enter the Tide
Graph Mode.
●
Interpreting Displayed Tide Conditions
The mode hand points to the current tide level
in the specified port.
Low tide
High tide
Low tide
Note
●
The tide is indicated as one of six
levels.
●
If the tide level is not being indicated
correctly, adjust the high tide time.
l
Adjusting High Tide Times
Adjusting High Tide Times
You can improve the accuracy of the
displayed high tide by adjusting the high tide
time in accordance with information available
on the internet or in a newspaper.
1. Enter the Tide Graph Mode.
l
Navigating Between Modes
2. Loosen the crown and then pull it out to the
first click.
3. Rotate the crown to change the high tide
time setting.
30
Crown
Current location time
High tide time in the specified port
4. Push the crown back in and then lock it.
Note
●
For a location where there are two high
tides per day, set the time of the first
high tide. The watch will automatically
calculate the time of the second high
tide.
●
If the specified port is in a time zone
that is different from your current time
zone, there may be cases when the
date in the port is different from the
displayed date.
●
If summer time is in effect in the
specified port, you should also use
summer time when specifying the high
tide time.
Watch Operation Guide 5702
24
Stopwatch
The stopwatch measures elapsed time in units
of one second up to 23 hours, 59 minutes, 59
seconds (24 hours).
30
Measuring Elapsed Time
30
Minutes
Hours
Seconds
Hours (24-hour time)
1. Enter the Stopwatch Mode.
l
Navigating Between Modes
2. Use the operations below to measure
elapsed time.
Stop
Resume
Stop
Start
3. Press (A) to reset the elapsed time to all
zeros.
Timer
The timer counts down from a start time
specified by you. A beeper sounds when the
end of the countdown is reached.
●
The beeper is muted when battery power is
low.
3
0
Using the CASIO WATCHES
Phone App to Configure
Timer Settings
If the watch is paired with a phone, you can
also use the CASIO WATCHES phone app to
set the timer start time.
l
Configuring Timer Settings
Setting the Timer Start Time
1. Enter the Timer Mode.
l
Navigating Between Modes
2. Loosen the crown and then pull it out to the
first click.
3. Rotate the crown to change the
countdown start time setting.
●
The countdown start time can be set in
1-minute units up to 24 hours.
30
Minutes
Hours
Seconds
24-hour
Crown
4. Push the crown back in and then lock it.
Note
●
To specify a countdown start time of 24
hours, align the small hour and minute
hands with 12 o’clock, so the small 24-
hour hand aligns with 24.
Using the Timer
1. Enter the Timer Mode.
l
Navigating Between Modes
2. Press (D) to start the countdown.
30
Minutes
Hours
Seconds
24-hour
A beeper sounds for 10 seconds when the
end of the countdown is reached.
●
To pause an ongoing countdown, press
(D). To reset a paused countdown to the
start time, press (A).
3. Press any button to stop the tone.
Watch Operation Guide 5702
25
Adjusting Hand and
Day Indicator
Alignment
Strong magnetism or impact can cause the
hands and/or the day indicator to go out of
alignment. If this happens, adjust hand and
day indicator alignment.
●
The watch performs alignment of the hour
hand, minute hand, and second hand
automatically.
Using the CASIO WATCHES
Phone App to Adjust Hand
and Day Indicator Alignment
If the watch is paired with a phone, you can
also use CASIO WATCHES to adjust hand
and day indicator positions.
l
Adjusting Hand and Day Indicator
Alignment
Adjusting Hand and Day
Indicator Alignment
1. Loosen the crown and then pull it out to the
second click.
2. Hold down (D) for at least five seconds
until the second hand points to 12 o’clock .
Release the button when the second hand
reaches 12 o’clock.
This will start auto alignment of the hour
hand, minute hand, second hand, and 24-
hour hand.
●
After auto alignment is complete, the
hands should be in the positions shown
below.
30
Second hand
Hour hand Minute hand
Crown
24-hour hand
3. Press (C).
Confirm that the small hour and minute
hands, and the small 24-hour hand are all
stopped at 12 o’clock.
30
Small minute hand
Small hour hand Small 24-hour hand
4. If the small hour and minute hands, and
the small 24-hour hand are not at 12
o’clock, rotate the crown to align them with
12 o’clock.
5. Press (C).
Confirm that the mode hand is stopped at
12 o’clock, and check if the day is
indicated properly.
30
30
Day (Operation start day)
Mode hand
6. If the mode hand and/or the day indicator
is out of alignment, rotate the crown to
move the mode hand to 12 o’clock and the
day to the center of the indicator window.
●
The movement range of the mode hand
and day indicator is limited when you
rotate the crown. The maximum left-
right movement of the mode hand is 180
degrees in either direction. The day
indicator moves only slightly.
●
After the mode hand and day indicator
are in the positions you want, advance
to step 9 of this procedure. If you are
unable to make the adjustments you
want, go to step 7.
7.
Press (C).
Confirm that the day indicator shows “1”.
30
1
Day
●
Changing the date setting will cause the
mode hand to rotate repeatedly. In
some cases, the mode hand may
continue to rotate for about 5 minutes.
l
Hand and Day Indicator Movement
8. If “1” is not shown for the day, rotate the
crown until “1” is shown for the day.
●
The mode hand moves in conjunction
with crown rotation. Move the mode
hand to 12 o’clock.
9. Push the crown back in and then lock it.
Note
●
Leaving the crown pulled out for more
than approximately 30 minutes without
performing any operation will
automatically cause the adjustment
operation to become disabled. If this
happens, push the crown back in to its
normal position and then pull it out
again to restart the procedure from the
beginning. Pushing the crown in to its
normal position part way through the
alignment procedure will cause the
hands to return to their normal position.
Any alignment you performed up to
that point will be applied.
Watch Operation Guide 5702
26
Other Settings
This section explains other watch settings you
can configure.
Resetting Watch Settings
This section explains how to return the watch
settings below to their initial factory defaults.
●
Watch Settings
●
Stopwatch
●
Timer
●
Alarm
●
Port specification
●
Diving log
1. Enter the Calendar Mode.
l
Navigating Between Modes
2. Loosen the crown and then pull it out to the
second click.
3. Hold down (A) for at least five seconds
until the second hand points to 12 o’clock.
30
Second hand
Crown
4. Push the crown back in and then lock it.
Other Information
This section provides non-operational
information you also need to know. Refer to
this information as required.
City (Time Zone) List
Time
offset
Second
Hand
Position
Representative
City
Receivable
Transmitter
±0* 0 London, Dublin
MSF,
DCF77
+1* 1 Paris, Rome
+2* 2 Athens, Cairo
+3 3
Jeddah,
Moscow
-
+4 4
Dubai, Abu
Dhabi
-
+5 5 Karachi -
+6 6 Dhaka -
+7 7
Bangkok,
Jakarta
-
+8* 8
Hong Kong,
Singapore
BPC
+9* 9 Tokyo, Seoul JJY
+10 10 Sydney, Guam -
+11 11
Noumea, Port
Vila
-
+12 12
Wellington,
Christchurch
-
+13 13 Nuku’alofa -
+14 14 Kiritimati -
-12 48 Baker Island -
-11 49 Pago Pago -
-10 50
Honolulu,
Papeete
-
-9 51
Anchorage,
Nome
-
-8* 52
Los Angeles,
Vancouver
WWVB
-7* 53
Denver,
Edmonton
-6* 54
Chicago,
Mexico City
-5* 55
New York,
Montreal
-4* 56
Halifax,
Caracas
-3 57
Rio de Janeiro,
Buenos Aires
-
-2 58
Fernando de
Noronha
-
-1 59 Praia -
* Time zones where time calibration signal
reception is possible.
●
The second hand position will be 45 (9
o’clock) if you used your phone to specify a
city whose time offset is not included in the
above table.
●
The information in the above table is current
as of July 2022.
Supported Phones
For information about phones that can
connect with the watch, visit the CASIO
website.
https://world.casio.com/os_mobile/wat/
Specifications
Accuracy at normal temperature :
±15 seconds per month average when time
adjustment by time calibration signal
reception or by communication with a phone
is not possible.
Timekeeping :
Hour, minute (5-second hand movement),
second, day (Full Auto Calendar 2000 to
2099), day of the week
Signal Receive Functions :
Auto receive, manual receive
Auto transmitter selection (for JJY, MSF/
DCF77)
Receivable Call Signs
JJY (40kHz/60kHz), BPC (68.5kHz),
WWVB (60kHz), MSF (60kHz), DCF77
(77.5kHz)
OFF: Signal receive disabled
Dual Time :
Hour, minute, 24-hour
27 time zones
Auto summer time setting
Home City/World Time City swapping
Tide Graph :
Tide level, high tide time correction
Stopwatch :
Measuring unit: 1 second
Measuring capacity: 23:59’59” (24 hours)
Alarm :
Setting units: Hours, minutes
Beeper: 10 seconds
Timer :
Setting unit: 1 minute
Countdown range: 24 hours
Measuring unit: 1 second
10-second beeper when the end of the
countdown is reached
Diving Function :
Dive time measurement: Up to two hours (1-
second units)
Surface interval display: Up to 24 hours
Log memory: 30 records (dive start and end
dates and times, or surface start and end
dates and times)
Watch Operation Guide 5702
27
Mobile Link :
Auto Time Correction
Phone finder
Watch operation sounds the alert sound
of the phone.
World Time
Current time for a selection of
approximately 300 cities
Home Time/World Time swapping
Auto summer time setting
Automatic switching between standard
time and summer time
Tide Graph (6 levels)
Information on approximately 3,300
global locations
Timer Settings
Alarm Settings
Hand alignment correction
Data Communication Specifications
Bluetooth
®
Frequency Band: 2400MHz to 2480MHz
Maximum Transmission: 0 dBm (1 mW)
Communication range: Up to 2 meters
(depends on environment)
Other :
LED light (Super Illuminator, afterglow)
Power Saving
Auto hand alignment correction
Hand Shift
Power Supply :
Solar panel and one rechargeable battery
Approximate Battery Life :
Approximately 5 months
Conditions
Not exposed to light under the conditions
below.
●
Bluetooth connection time: 10
hours/day
●
Alarm: Once (10 seconds)/day
●
Illumination: Once (3 seconds)/day
●
Second hand sleep: 6 hours/day
●
Diving: 3 dives/month
ー
Dive time measurement: 45 minutes/
dive
ー
Surface interval measurement: 15
minutes/dive
ー
Illumination: 6 seconds (3 seconds x
2)/dive
Note that battery operating time is reduced
by illumination conditions, dive time
duration in the Dive Mode, and Bluetooth
connection time.*
*
Bluetooth connection time
●
16 hours/day: Approximately 4 months
●
18 hours/day: Approximately 3 months
Specifications are subject to change without
notice.
Copyrights and Registered
Copyrights
●
The Bluetooth
®
word mark and logos are
registered trademarks owned by the
Bluetooth SIG, Inc. and any use of such
marks by CASIO Computer Co., Ltd. is
under license.
●
iPhone and App Store are trademarks of
Apple Inc. in the United States and other
countries.
●
iOS is a trademark or registered trademark
of Cisco Systems, Inc.
●
Android and Google Play
TM
are trademarks
or registered trademarks of Google LLC.
●
Other company names and product names
used herein are trademarks or registered
trademarks of their respective companies.
Troubleshooting
Signal Reception (Time
Calibration Signal)
Q1
The watch cannot perform a receive
operation.
Is the watch’s battery charged?
Signal reception is not possible while
battery power is low. Keep the watch
exposed to light until it recharges
sufficiently.
l
Charging
Is the watch in the Calendar Mode?
The watch cannot receive time calibration
signals while the Airplane Mode is
enabled or while the watch is in a mode
other than the Calendar Mode. Return to
the Calendar Mode.
l
Navigating Between Modes
l
Using the Watch in a Medical Facility or
Aircraft
Is your time zone setting correct for your
location?
The watch will not indicate the correct time
if the time zone setting is wrong. Change
your time zone setting so it is correct for
your location.
l
Selecting Your Home City’s Time Zone
Is the watch paired with a phone?
The time calibration signal auto receive
operation is not performed while the
watch is paired with a phone. (However,
time signal auto receive is performed if
there has been no time adjustment based
on connection between the watch and
phone for more than one day.)
Also, a manual time calibration signal
receive operation cannot be performed
while the watch is paired with a phone.
When you want to enable time calibration
signal reception without using a phone,
unpair the watch from your phone.
l
Unpairing
After checking the above, the watch still
cannot perform a receive operation.
Time calibration signal reception is not
possible under the conditions described
below.
●
While the watch is at Level 3 power
saving
●
When the crown is pulled out
●
Timer countdown operation in progress
If successful reception is not possible for
some reason, you can adjust the time and
day settings manually.
Watch Operation Guide 5702
28
Q2
The signal receive operation always
fails.
Is the watch in a location that is appropriate
for signal reception?
Check your surroundings and move the
watch to a location where signal reception
is better.
l
Appropriate Signal Reception Location
Did you avoid touching the watch while the
receive operation was in progress?
Minimize movement of the watch and do
not perform any watch operation while a
receive operation is in progress.
Is there an alarm configured to sound
during the same period that the signal
receive operation is performed?
Receive stops if an alarm operation starts
while it is being performed. Disable the
alarm.
l
Turning Off the Alarm
Is the signal transmitter in your area
transmitting a signal?
The transmitter of the time calibration may
not be transmitting a signal.
Try again later.
Q3
Signal reception should have been
successful, but the watch’s time and/
or day is wrong.
Is the indicated time off by one hour or by
30 minutes?
The watch may be using the wrong time
offset. Correctly specify the time zone
where you are using the watch.
l
Selecting Your Home City’s Time Zone
Is the indicated hour and/or minute wrong?
The hour hand and/or minute hand may
be out of alignment. Perform the
procedure under “Adjusting Hand and
Day Indicator Alignment” to auto adjust
hour and minute hand alignment.
l
Adjusting Hand and Day Indicator
Alignment
Is the indicated day of the week wrong?
The day of the week hand (mode hand)
may be out of alignment. Perform the
procedure under “Adjusting Hand and
Day Indicator Alignment” to adjust mode
hand alignment.
l
Adjusting Hand and Day Indicator
Alignment
Is the indicated Dual Time and/or alarm
time wrong?
The Dual Time and/or alarm time hands
(small hour hand, small minute hand) may
be out of alignment. Perform the
procedure under “Adjusting Hand and
Day Indicator Alignment” to adjust small
hour hand and small minute hand
alignment.
l
Adjusting Hand and Day Indicator
Alignment
After checking the above, the time and/or
day settings is still wrong.
Adjust time and day settings manually.
l
Using Watch Operations to Adjust the
Time Setting
I can’t pair the watch with a
phone.
Q1
I’ve never been able to establish a
(pairing) connection between the
watch and phone.
Are you using a supported phone model?
Check if the phone model and its
operating system are supported by the
watch.
For information about supported phone
models, visit the CASIO Website.
https://world.casio.com/os_mobile/wat/
Did you install the CASIO WATCHES
phone app on your phone?
The CASIO WATCHES phone app needs
to be installed on your phone in order to
connect with the watch.
l
A
Install the required app on your
phone.
Are your phone’s Bluetooth settings
configured correctly?
Configure the phone’s Bluetooth settings.
For details about setting procedures, see
your phone documentation.
iPhone Users
●
“Settings”
n
“Bluetooth”
n
On
●
“Settings”
n
“Privacy”
n
“Bluetooth”
n
“CASIO WATCHES”
n
On
Android Users
●
Enable Bluetooth.
Other than the above.
Some phones need to have BT Smart
disabled to use CASIO WATCHES. For
details about setting procedures, see your
phone documentation.
On the Home Screen, tap: “Menu”
n
“Settings”
n
“Bluetooth”
n
“Menu”
n
“BT Smart settings”
n
“Disable”.
Watch Operation Guide 5702
29
I can’t reconnect the watch
and phone.
Q1
The watch will not re-connect with the
phone after they are disconnected.
Is the CASIO WATCHES phone app
running?
The watch cannot re-connect with your
phone unless CASIO WATCHES is
running on the phone. On the phone’s
Home Screen, tap the “CASIO
WATCHES” icon. Next, on the watch, hold
down (D) for at least 0.5 seconds until the
second hand points to [C].
30
Have you tried turning your phone off and
then back on again?
Turn the phone off and then back on, and
then tap the “CASIO WATCHES” icon.
Next, on the watch, hold down (D) for at
least 0.5 seconds until the second hand
points to [C].
30
Is a timer countdown operation in
progress?
Connection with a phone is not possible
while there is 30 seconds or less
remaining on a countdown timer
operation. Stop the countdown operation
before connecting with the phone.
Q2
I can’t connect while my phone is in
the Airplane Mode.
Connection with the watch is not possible
while the phone’s Airplane Mode is enabled.
After disabling the phone’s Airplane Mode, go
to the phone’s Home Screen and tap the
“CASIO WATCHES” icon. Next, on the watch,
hold down (D) for at least 0.5 seconds until the
second hand points to [C].
30
Q3
I changed the phone’s Bluetooth
from enabled to disabled, and now I
can’t connect anymore.
On the phone, turn Bluetooth off and then back
on, and then tap the “CASIO WATCHES” icon
on the Home Screen. Next, on the watch, hold
down (D) for at least 0.5 seconds until the
second hand points to [C].
30
Q4
I can’t connect after turning off the
phone.
Turn on the phone and then tap the “CASIO
WATCHES” icon. Next, on the watch, hold
down (D) for at least 0.5 seconds until the
second hand points to [C].
30
Phone-Watch Connection
Q1
I can’t establish a connection
between the phone and watch.
Have you tried turning your phone off and
then back on again?
Turn the phone off and then back on, and
then tap the “CASIO WATCHES” icon.
Next, on the watch, hold down (D) for at
least 0.5 seconds until the second hand
points to [C].
30
Is the watch’s Airplane Mode enabled?
Connection with your phone is not
possible while the watch’s Airplane Mode
is enabled. To connect with your phone,
disable the Airplane Mode.
l
Using the Watch in a Medical Facility or
Aircraft
Has the watch been re-paired with the
phone?
Delete the pairing information from the
CASIO WATCHES phone app and your
phone (iPhone only), and then re-pair
them.
l
Deleting Pairing Information from the
CASIO WATCHES phone app
l
iPhone Only
Deleting the phone’s pairing
information
l
C
Pair the watch with a phone.
If you are unable to establish a
connection...
After deleting pairing information from the
watch, re-pair it with your phone.
l
Deleting Pairing Information from the
Watch
l
C
Pair the watch with a phone.
Changing to a Different
Phone Model
Q1
How do I connect my watch to a
different phone?
Delete the pairing information from your watch
and then pair it with the phone you want to
connect with.
l
If you purchase another phone
Watch Operation Guide 5702
30
Auto Time Adjustment by
Bluetooth Connection (Time
Adjustment)
Q1
When does the watch adjust its time?
Your watch can connect with a paired phone
to adjust its time setting. Auto time adjustment
is performed at the times described below.
●
After your phone’s time zone or summer
time setting is changed
●
After 24 hours or more have passed since
the last time adjustment using Bluetooth
connection
●
After 24 hours or more have passed since
city swapping using CASIO WATCHES or
watch operation
●
After 24 hours or more have passed since
the last home city change or time
adjustment using watch operation
Q2
Auto time setting is not correct.
Is there a Bluetooth connection between
the watch and your phone?
To preserve battery power, the watch will
automatically terminate Bluetooth
connection with your phone temporarily if
it detects the connection has been unused
for approximately one hour. Auto Time
Adjustment is disabled while there is no
connection. To reconnect, press any
watch button or angle the watch towards
your face.
Have 24 hours or more passed since the
last time adjustment using Bluetooth
connection?
Time adjustment using Bluetooth
connection is performed once every 24
hours. Auto time adjustment will be
performed when 24 hours or more have
elapsed since the last time adjustment
operation.
Have 24 hours or more has passed since
the last manual time adjustment, city
change, or city swapping operation?
Auto time adjustment is not performed for
24 hours after a manual time adjustment,
city change, or city swapping operation.
Auto time adjustment will resume after 24
hours or more have elapsed after either of
the above operations is performed.
Is the watch’s Airplane Mode enabled?
Connection with your phone is not
possible while the watch’s Airplane Mode
is enabled. To connect with your phone,
disable the Airplane Mode.
l
Using the Watch in a Medical Facility or
Aircraft
Q3
Even if I hold down (D) for at least 0.5
seconds, the watch does not sync its
time setting with my phone.
Connection with your phone is not possible
while the watch’s Airplane Mode is enabled.
To connect with your phone, disable the
Airplane Mode.
l
Using the Watch in a Medical Facility or
Aircraft
Q4
Time is not displayed correctly.
If your phone is unable to receive a signal
because you are outside its service range or
for some other reason, the watch may not be
able to display the correct time. If this
happens, connect the phone to its network
and then adjust the time setting.
Q5
Time signal reception is not
performed while watch is connected
with a phone.
The watch does not receive a time signal for
time correction while it is connected with a
phone. However, time signal auto receive is
performed if there has been no auto time
adjustment based on connection between the
watch and phone for more than one day.
Diving Function
Q1
I can’t enter the Dive Mode.
The watch will not enter the Dive Mode while
its charge is low or dead. Charge the watch
before using it for diving.
Q2
The watch enters the Calendar Mode
when it switches from dive time
measurement to surface interval
measurement.
If the watch charge becomes low while it is in
the Dive Mode, it will not be able to perform
surface interval measurement. Charge the
watch before using it for diving.
Tide Level
Q1
Tide level information is not
displayed when I enter the Tide
Graph Mode.
To check a tide level, use CASIO WATCHES
to specify a port.
Alarm
Q1
The alarm does not sound.
Is the watch’s battery charged?
Keep the watch exposed to light until it
recharges sufficiently.
l
Charging
The crown is pulled out.
The alarm will not sound while the crown
is pulled out. Push the crown back in to its
normal position.
Is the alarm enabled?
Enable the alarm.
l
Configuring Alarm Settings
Hand Movement and
Indications
Q1
I don’t know what mode the watch is
in.
You can determine the current mode by
checking the mode hand position. Use (C) to
navigate between modes.
l
Navigating Between Modes
30
Q2
The second hand is jumping at two-
second intervals.
Battery power is low. Keep the watch exposed
to light until it recharges sufficiently.
l
Charging
Q3
All hands are stopped and buttons do
not work.
The battery is dead. Keep the watch exposed
to light until it recharges sufficiently.
l
Charging
Watch Operation Guide 5702
31
Q4
The hands suddenly start moving at
high speed.
This is due to the reason (or one of the
reasons) below, and does not indicate
malfunction. Simply wait until normal hand
movement resumes.
●
The watch is recovering from a power
saving state.
l
Power Saving
●
A time calibration signal is being received
and the time setting is being adjusted.
l
Time Adjustment Using a Time Signal
●
Watch is connected with a phone to adjust
its time setting.
l
Auto Time Adjustment
Q5
Hands are stopped and buttons do
not work.
The watch is in the charge recovery mode.
Wait until the recovery process is complete
(for about 15 minutes). The watch will recover
more quickly if you place it in a brightly lit
location.
Q6
Why is the current time indicated by
the watch is off by a certain amount
of time (nine hours, three hours and
15 minutes, etc.)?
The city setting is not correct. Select the
correct setting.
l
Selecting Your Home City’s Time Zone
Q7
The current time indicated by the
watch is off by one hour or 30
minutes.
The summer time setting is not correct. Select
the correct setting.
l
Selecting Your Home City’s Time Zone
Q8
The hand and/or day indicator are not
aligned correctly.
Strong magnetism or impact can cause the
hands and/or the indicator to go out of
alignment. Adjust hand and/or day indicator
alignment.
l
Adjusting Hand and Day Indicator
Alignment
●
Check the information below to find out how
to align the hands and/or day indicator
manually.
l
Adjusting Hand and Day Indicator
Alignment
Crown Operations
Q1
Nothing happens when I rotate the
crown.
If you do not perform any operation for about
two minutes after pulling out the crown
(approximately 30 minutes in the case of hand
and day indicator alignment), crown
operations will automatically become
disabled. Push the crown back in to its normal
position and then pull it out again to re-enable
crown operations.
l
Using the Crown
Other
Q1
I can’t find the information I need
here.
Visit the website below.
https://world.casio.com/support/
Watch Operation Guide 5702
32
