Contents
Precautions
Operating Precautions
User Maintenance
Battery Replacement
Mobile Link Precautions
Before Getting Started...
General Guide
Watch Face and Display Indicators
Navigating Between Modes
Cycling Between Timekeeping Mode Digital
Display Contents
Shifting Hands to Read the Digital Display
Viewing the Face in the Dark
Useful Features
Linking with a Phone
Getting Ready
Auto Time Correction
Configuring World Time Settings
Adjusting Hand Alignment
Phone Finder
Configuring Watch Settings
Changing the Home City Summer Time Setting
Recording Your Current Location
(TIME&PLACE)
Connection
Connecting with a Phone
Disconnecting from Your Phone
Unpairing
If you purchase another phone
Time Adjustment
Using Watch Operations to Adjust the Time
Setting
Using the Watch in a Medical Facility or
Aircraft
World Time
Using CASIO WATCHES to Configure World
Time City Settings
Checking World Time
Setting the World Time City
Swapping Your Home Time and World Time
Alarm
Using CASIO WATCHES to Configure Alarm
Settings
Configuring Alarm Settings
Enabling the Hourly Time Signal
Turning Off an Alarm or the Hourly Time Signal
Moving to Another Time Zone
Stopwatch
Measuring Elapsed Time
Measuring a Split Time
Timing the First and Second Place Finishers
Timer
Using CASIO WATCHES to Configure Timer
Settings
Setting the Countdown Start Time
Using the Timer
Hand Alignment Adjustment
Using CASIO WATCHES to Adjust Hand
Alignment
Adjusting Hand Alignment
Other Settings
Specifying the Day of the Week Language
Enabling the Button Operation Tone
Resetting Watch Settings
Other Information
City Table
Summer Time Table
Supported Phones
Specifications
Copyrights and Registered Copyrights
Troubleshooting
Watch Operation Guide 5734
1
MA2501-EA
OPUM-J
© 2025 CASIO COMPUTER CO., LTD.
Precautions
Operating Precautions
●
Water Resistance
●
The information below applies to watches
with WATER RESIST or WATER
RESISTANT marked on the back cover.
Water Resistance Under Daily Use
Marking on watch front or on
back cover
No BAR
mark
Example of Daily Use
Hand washing, rain Yes
Water-related work, swimming No
Windsurfing No
Skin diving No
Enhanced Water Resistance Under Daily
Use
5 Atmospheres
Marking on watch front or on
back cover
5BAR
Example of Daily Use
Hand washing, rain Yes
Water-related work, swimming Yes
Windsurfing No
Skin diving No
10 Atmospheres
Marking on watch front or on
back cover
10BAR
Example of Daily Use
Hand washing, rain Yes
Water-related work, swimming Yes
Windsurfing Yes
Skin diving Yes
20 Atmospheres
Marking on watch front or on
back cover
20BAR
Example of Daily Use
Hand washing, rain Yes
Water-related work, swimming Yes
Windsurfing Yes
Skin diving Yes
●
Do not use your watch for scuba diving or
other types of diving that requires air tanks.
●
Watches that do not have WATER RESIST
or WATER RESISTANT marked on the
back cover are not protected against the
effects of sweat. Avoid using such a watch
under conditions where it will be exposed to
large amounts of sweat or moisture, or to
direct splashing with water.
●
Even if a watch is water resistant, note the
usage precautions described below. Such
types of use reduce water resistance
performance and can cause fogging of the
glass.
ー
Do not operate the crown or buttons while
your watch is submersed in water or wet.
ー
Avoid wearing your watch while in the
bath.
ー
Do not wear your watch while in a heated
swimming pool, sauna, or any other high
temperature/high humidity environment.
ー
Do not wear your watch while washing
your hands or face, while doing
housework, or while performing any other
task that involves soaps or detergents.
●
After submersion in seawater, use plain
water to rinse all salt and dirt from your
watch.
●
To maintain water resistance, have the
gaskets of your watch replaced periodically
(about once every two or three 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.
●
Some water-resistant watches come with
fashionable leather bands. Avoid
swimming, washing, or any other activity
that causes direct exposure of a leather
band to water.
●
The inside surface of the watch glass may
fog when the watch is exposed to a sudden
drop in temperature. No problem is
indicated if the fogging clears up relatively
quickly. Sudden and extreme temperature
changes (such as coming into an air
conditioned room in the summer and
standing close to an air conditioner outlet,
or leaving a heated room in the winter and
allowing your watch to come into contact
with snow) can cause it to take longer for
glass fogging to clear up. If glass fogging
does not clear up or if you notice moisture
inside of the glass, immediately stop using
your watch and take it to your original
retailer or to an authorized CASIO service
center.
●
Your water-resistant watch has been tested
in accordance with International
Organization for Standardization
regulations.
●
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).
Watch Operation Guide 5734
2
●
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.
●
Leaving your watch in an area hotter than
+60 °C (140 °F) for long periods can lead to
problems with its LCD. The LCD may
become difficult to read at temperatures
lower than 0 °C (32 °F) and greater than
+40 °C (104 °F).
●
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.
●
Electrostatic charge may cause temporary
blotching in blank areas of the LCD.
●
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.
●
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.
Watch Operation Guide 5734
3
●
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.
●
Liquid Crystal Display
●
Display figures may be difficult to read when
viewed from an angle.
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.
●
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.
Watch Operation Guide 5734
4
Battery Replacement
●
Leave battery replacement up to your
original retailer or authorized CASIO
service center.
●
Have the batteries replaced only with the
type specified in the “Specifications”. Use of
a different battery type can cause
malfunction.
●
When replacing the batteries, also request
a check for proper water resistance.
●
Ornamental resin components may
become worn, cracked, or bent over time
when subjected to normal daily use. Note
that if cracking or any other abnormality
indicating possible damage is noticed in a
watch submitted for battery replacement,
your watch will be returned with an
explanation of the abnormality, without the
requested servicing being performed.
●
Initial Batteries
●
The batteries that come loaded in your
watch when you purchase it are used for
function and performance testing at the
factory.
●
Test batteries may go dead quicker than the
normally rated battery life noted in the
“Specifications”. Note that you will be
charged for replacement of these batteries,
even if replacement is required within your
watch’s warranty period.
●
Low Battery Power
●
Low battery power is indicated by large
timekeeping error, by dim display contents,
or by a blank display.
●
Operation while battery power is low can
result in malfunction. Replace the batteries
as soon as possible.
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 is emitting radio waves whenever
the mode hand is pointing to
e
.
In addition, the watch also connects phone
automatically four times a day to adjust its time
setting.
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.
●
Stopping Radio Wave Generation
Press any button to terminate the Bluetooth
connection.
DisconnectedConnected
●
Disabling Auto Time Correction
Configure CASIO WATCHES phone app
settings to disable synchronization
between the watch and phone.
l
Using the Watch in a Medical Facility or
Aircraft
Watch Operation Guide 5734
5
Before Getting
Started...
This section provides an overview of the watch
and introduces convenient ways it can be
used.
Watch Features
●
Phone Linking
The watch supports connection and
communication with a Bluetooth capable
phone.
●
World Time
Display the current time in any one of 38
time zones* around the globe.
* Subject to being updated when
connected with a phone.
●
Alarm
An alarm sounds whenever a time specified
by you is reached.
●
Stopwatch
The stopwatch measures elapsed time in
units of 1/100 second for the first hour, and
in one-second units thereafter, for up to 24
hours.
●
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
③④
①②
A Hour hand
B Minute hand
C Mode hand
Indicates the current mode.
D LCD
A button
Pressing this button in the Timekeeping Mode
cycles between displays.
B button
Press to turn on illumination.
C button
Each press cycles between watch modes.
In any mode, hold down this button for at least
one second to return to the Timekeeping
Mode.
D button
Pressing this button while any setting screen
is displayed will change the setting.
Watch Face and Display
Indicators
④
⑤
⑥
⑦
⑧
①②③
⑫⑬
⑨
⑩
⑪
A Displayed during p.m. times while 12-hour
timekeeping is being used.
B Displayed while the watch is indicating
summer time.
C Flashes while the watch’s hands are
shifted for easier reading.
D The mode hand points to
e
while the watch
is connected with a phone.
E In the Alarm Mode, the mode hand points
to [AL].
F In the Timer Mode, the mode hand points
to [TR].
G In the Stopwatch Mode, the mode hand
points to [ST].
H In the World Time Mode, the mode hand
points to [WT].
I Displayed in the Stopwatch Mode when
the displayed time is a split time.
J Displayed while there is a Bluetooth
connection between the watch and a
phone.
K Displayed while an alarm is turned on.
L Displayed when the watch successfully
connects with a phone and adjusts its time
setting.
M Displayed while the hourly time signal is
enabled.
Watch Operation Guide 5734
6
Navigating Between Modes
Each press of (C) cycles between watch
modes.
●
In any mode, hold down (C) for at least one
second to return to the Timekeeping Mode.
CC
CC
C
Alarm Mode
Timer Mode Stopwatch Mode
World Time Mode
Timekeeping Mode
Mode hand
●
Connecting with a Phone
Hold down (C) for at least three seconds to
connect with a phone.
●
To disconnect, press any button.
After connectionBefore connection
C
Any button
Cycling Between
Timekeeping Mode Digital
Display Contents
Each press of (A) in the Timekeeping Mode
toggles between the display information as
shown below.
Hours, minutes
Seconds
Day of the week, date
Shifting Hands to Read the
Digital Display
Hand shift moves the hands out of the way for
easy viewing of display information.
1. While holding down (B), press (C).
●
This will shift the analog hands to allow
easy viewing of display information.
2. To return the hands to their normal
timekeeping positions, hold down (B) as
you press (C) again, 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 one hour, the
hands will resume normal timekeeping
automatically.
Viewing the Face in the Dark
The watch has an LED light that you can turn
on for reading in the dark.
●
Turning On Illumination
Press (B) to illuminate the face and digital
display.
●
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.
Important!
●
Frequent use of illumination runs down
the battery.
Note
●
Display illumination is disabled when
any one of the conditions below exists.
ー
Alarm, timer alert, or other beeper
sounding
Watch Operation Guide 5734
7
●
Specifying the Illumination Duration
You can select either 1.5 seconds or three
seconds as the illumination duration.
1. Enter the Timekeeping Mode.
l
Navigating Between Modes
2. Hold down (A) for at least two seconds
until the name of the currently selected
Home City is displayed.
●
This is the setting mode. The hands
automatically shift out of the way for
easy viewing of the display and other
indicators.
Home City
3. Press (C) 11 times to display [LIGHT].
4. Press (D) to select an illumination
duration.
[1]: 1.5-second illumination
[3]: 3-second illumination
5. Press (A) to exit the setting screen.
Note
●
While the setting is being configured,
the watch will exit the setting operation
automatically after about two or three
minutes of non-operation.
Useful Features
Pairing the watch with your phone makes a
number of the watch’s features easier to use.
Auto time correction
l
Auto Time Correction
12:30
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
WATCHES” phone app installed to pair with
the watch.
Linking with a Phone
While there is a Bluetooth connection
between the watch and phone (Mobile Link),
the watch’s current time setting is corrected
automatically. You can also change the
watch’s other settings.
Note
●
This function is available only while the
CASIO WATCHES phone app 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 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.
Watch Operation Guide 5734
8
●
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.
3.
Y
Tap the of the “My Watch” tab.
4.
Y
Perform the operation shown on the
phone screen to register the watch to the
CASIO WATCHES phone app.
5.
X
Hold down (C) for at least three seconds
until [CNCT] starts to flash. Release the
button when the mode hand moves to
e
.
When a connection is established
between the watch and phone, [CNCT]
will stop flashing.
●
If pairing fails for some reason, [ERR]
will appear on the display momentarily
and then the watch will return to the
Timekeeping Mode. Perform the pairing
procedure again from the beginning.
Pairing completePairing started
Note
●
The first time you start up the 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 Correction
Your watch will connect with a phone at preset
times each day and correct its time settings
automatically.
●
Using This Function
Your watch corrects its time setting four times
a day according to a preset schedule. If you
leave your watch in the Timekeeping Mode, it
will perform the correction operation
automatically as you go about your daily life,
without any operation required by you.
12:30
Important!
●
The watch may not be able to perform
auto time correction 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
Note
●
If the watch does not indicate the
correct time even if is able to connect
with a phone, adjust the hand
positions.
l
Adjusting Hand Alignment
●
If there is a World Time City specified
with the CASIO WATCHES phone
app, its time will also be corrected
automatically.
●
The watch will connect with the phone
and perform auto time correction at
around 12:30 a.m., 6:30 a.m., 12:30
p.m. and 6:30 p.m. The connection is
automatically terminated after auto
time correction is complete.
●
Triggering Immediate Time Correction
The watch’s time setting will be corrected
automatically whenever you establish a
connection between the watch and a phone.
Whenever you want to trigger immediate time
correction, perform the procedure below to
connect with a phone.
1.
X
Enter the Timekeeping Mode.
l
Navigating Between Modes
2. Move the phone close to (within one meter
of) the watch.
3.
X
Press (D).
[TIME] flashes to indicate that the watch
has started the connection operation.
Once the watch and phone are
connected, [OK] will appear, and then the
watch will correct its time setting based on
information from the phone.
●
At this time your current location is
recorded by your phone.
After time correctionTrying to connect
Note
●
The connection is terminated
automatically after time correction is
complete.
●
If time correction fails for some reason,
[ERR] will appear.
●
[RCVD] flashes when the receive
operation starts, and [RCVD] stops
flashing after it is complete.
Watch Operation Guide 5734
9
Configuring World Time
Settings
Specifying a World Time City with the CASIO
WATCHES phone app causes the watch’s
World Time City to change accordingly.
Settings can be configured to perform auto
summer time switching for the World Time
City.
Note
●
The CASIO WATCHES phone app
World Time lets you select from among
approximately 300 cities as the World
Time City.
●
You can use the CASIO WATCHES
phone app to configure settings for
user cities that are not included in the
watch’s built-in World Time Cities. You
must use the CASIO WATCHES
phone app to select a user city as your
World Time City.
●
To select a World Time City
1.
Y
Tap the “CASIO WATCHES” icon.
2.
X
Hold down (C) for at least three seconds
until [CNCT] starts to flash. Release the
button when the mode hand moves to
e
.
When a connection is established
between the watch and phone, [CNCT]
will stop flashing.
●
If connection fails for some reason,
[ERR] will appear on the display
momentarily and then the watch will
return to the Timekeeping Mode.
ConnectedTrying to connect
3.
Y
Perform the operation shown on the
phone screen. The World Time setting will
be reflected on the watch.
●
Configuring the Summer Time Setting
1.
Y
Tap the “CASIO WATCHES” icon.
2.
X
Hold down (C) for at least three seconds
until [CNCT] starts to flash. Release the
button when the mode hand moves to
e
.
When a connection is established
between the watch and phone, [CNCT]
will stop flashing.
●
If connection fails for some reason,
[ERR] will appear on the display
momentarily and then the watch will
return to the Timekeeping Mode.
ConnectedTrying to connect
3.
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”.
●
For information about summer time
periods, refer to the “Summer Time
Table” or CASIO WATCHES.
l
Summer Time Table
●
Swapping Your World Time and Home
Time
1.
Y
Tap the “CASIO WATCHES” icon.
2.
X
Hold down (C) for at least three seconds
until [CNCT] starts to flash. Release the
button when the mode hand moves to
e
.
When a connection is established
between the watch and phone, [CNCT]
will stop flashing.
●
If connection fails for some reason,
[ERR] will appear on the display
momentarily and then the watch will
return to the Timekeeping Mode.
ConnectedTrying to connect
3.
Y
Perform the operation shown on the
phone screen to swap your Home Time
with your World Time.
Note
●
Auto time correction does not work for
24 hours after swapping the Home
Time and World Time.
Watch Operation Guide 5734
10
Adjusting Hand Alignment
If the hands are out of alignment even though
auto time correction is being performed, you
can use the CASIO WATCHES phone app to
adjust them.
1.
Y
Tap the “CASIO WATCHES” icon.
2.
X
Hold down (C) for at least three seconds
until [CNCT] starts to flash. Release the
button when the mode hand moves to
e
.
When a connection is established
between the watch and phone, [CNCT]
will stop flashing.
●
If connection fails for some reason,
[ERR] will appear on the display
momentarily and then the watch will
return to the Timekeeping Mode.
ConnectedTrying to connect
3.
Y
Perform the operation shown on the
phone screen to correct hand alignment.
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!
●
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
If the watch is connected with a phone,
press any button to terminate the
connection.
DisconnectedConnected
2.
X
If the watch is in any mode besides the
Timekeeping Mode, hold down (C) for at
least one second to enter the
Timekeeping Mode.
3.
X
Hold down (D) for at least three
seconds. Release the button when [FIND]
starts to flash at low speed.
The phone will sound a tone when it
establishes a connection with the watch.
●
It will take a few seconds before the
phone tone sounds.
Sounding phone
alert sound
Getting ready to
connect with phone
4.
X
Press any button to stop the tone.
●
You can press any watch button to stop
the phone tone only during the first 30
seconds after it starts to sound.
Configuring Watch Settings
Alarm time, timer start time, and other settings
can also be configured using the CASIO
WATCHES phone app.
1.
Y
Tap the “CASIO WATCHES” icon.
2.
X
Hold down (C) for at least three seconds
until [CNCT] starts to flash. Release the
button when the mode hand moves to
e
.
When a connection is established
between the watch and phone, [CNCT]
will stop flashing.
●
If connection fails for some reason,
[ERR] will appear on the display
momentarily and then the watch will
return to the Timekeeping Mode.
ConnectedTrying to connect
3.
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
1.
Y
Tap the “CASIO WATCHES” icon.
2.
X
Hold down (C) for at least three seconds
until [CNCT] starts to flash. Release the
button when the mode hand moves to
e
.
When a connection is established
between the watch and phone, [CNCT]
will stop flashing.
●
If connection fails for some reason,
[ERR] will appear on the display
momentarily and then the watch will
return to the Timekeeping Mode.
ConnectedTrying to connect
3.
Y
Perform the operation shown on the
phone screen to change your Home City
summer time setting.
Watch Operation Guide 5734
11
Recording Your Current
Location (TIME&PLACE)
While traveling or otherwise on the go, you can
use the procedure below to record your
current location, along with the time and date,
on your phone. Recorded location information
can be viewed on the CASIO WATCHES
phone app map.
●
Recording Your Current Location
1.
X
Enter the Timekeeping Mode.
l
Navigating Between Modes
2.
X
When you are in the location you want
to record, press (D).
This records, in phone memory, the
latitude and longitude of the location you
are in when you press the button, along
with the date and time.
●
[OK] appears when registration is
complete. [ERR] appears when
registration fails.
●
At this time the time settings of your
phone and watch will be synced with
each other.
●
Viewing a Recorded Location on a Map
1.
Y
Tap the “CASIO WATCHES” icon.
2.
Y
Perform the operation shown on the
phone screen to view recorded location
information.
Note
●
You can use the CASIO WATCHES
phone app to delete recorded location
information.
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 (C) for at least three seconds
until [CNCT] starts to flash. Release the
button when the mode hand moves to
e
.
When a connection is established
between the watch and phone, [CNCT]
will stop flashing.
●
If connection fails for some reason,
[ERR] will appear on the display
momentarily and then the watch will
return to the Timekeeping Mode.
ConnectedTrying to connect
Important!
●
If you have problems establishing a
connection, it could mean that the
CASIO WATCHES phone app 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 (C) button
for at least three seconds.
Note
●
The connection will be terminated if
you do not perform any operation on
the watch or phone for a fixed amount
of time.
To specify the connection limit time,
perform the following operation with
the CASIO WATCHES phone app:
“Watch settings”
n
“Connection time
with the app”. Next, select a setting of
3 minutes, 5 minutes, or 10 minutes.
Disconnecting from Your Phone
Pressing any button will terminate a Bluetooth
connection and return to the Timekeeping
Mode.
DisconnectedConnected
Unpairing
Unpairing the watch from a phone requires
both the CASIO WATCHES phone app and
watch operations.
●
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.
●
Deleting Pairing Information from the
Watch
1.
X
Hold down (C) for at least one second
to enter the Timekeeping Mode.
2.
X
Hold down (A) for at least two seconds.
Release the button when the name of the
currently selected Home City appears on
the display.
●
This is the setting mode. The hands
automatically shift out of the way for
easy viewing of the display and other
indicators.
Home City
Watch Operation Guide 5734
12
3.
X
Press (C) twice.
This causes the seconds to flash.
Seconds
4.
X
Hold down (B) for at least two seconds.
This will cause [PAIR] and [CLR] to
alternate on the display. Release the
button when only [CLR] is displayed.
This deletes the pairing information from
the watch and returns to the timekeeping
display.
5.
X
Press (A) to return to the Timekeeping
Mode.
Note
●
While the setting is being configured,
the watch will exit the setting operation
automatically after about two or three
minutes of non-operation.
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 connect with a phone to obtain
information that it uses to correct its date and
time setting.
Important!
●
When you are on an aircraft or in any
other location where radio signals area
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 correction by connecting with your
phone is recommended.
l
Getting Ready
l
Auto Time Correction
12:30
If your phone cannot connect with the
watch
You can correct time settings by
performing operations on the watch.
l
Using Watch Operations to Adjust the
Time Setting
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.
●
Setting a Home City
Use the procedure in this section to select a
city to use as your Home City. If you are in an
area that observes summer time, you can also
configure a summer time setting.
Note
●
The initial factory default summer time
setting for all cities is [AUTO]. In many
cases, the [AUTO] setting lets you use
the watch without switching between
summer time and standard time.
●
While the setting is being configured,
the watch will exit the setting operation
automatically after about two or three
minutes of non-operation.
1. Enter the Timekeeping Mode.
l
Navigating Between Modes
2. Hold down (A) for at least two seconds.
Release the button when the name of the
currently selected Home City appears on
the display.
●
This is the setting mode. The hands
automatically shift out of the way for
easy viewing of the display and other
indicators.
Home City
3. Use (B) and (D) to change the Home City
setting.
●
Holding down (B) or (D) scrolls through
settings at high speed.
●
For details refer to the information
below.
l
City Table
4. Press (C).
Watch Operation Guide 5734
13
5. Use (D) to select a summer time setting.
Each press of (D) cycles through available
settings in the sequence shown below.
●
[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.
6. Press (A) to complete the setting
operation.
●
Setting the Time/Date
1. Enter the Timekeeping Mode.
l
Navigating Between Modes
2. Hold down (A) for at least two seconds.
Release the button when the name of the
currently selected Home City appears on
the display.
●
This is the setting mode. The hands
automatically shift out of the way for
easy viewing of the display and other
indicators.
Home City
3. Keep pressing (C) until the setting you
want to change is flashing.
●
Each press of (C) moves the flashing to
the next setting in the sequence shown
below.
Summer time
Home City
Ye a r
Minutes
Hours
12/24-hour timekeeping
Day
Month
Seconds
Auto Time Correction
Illumination duration
Operation tone enable/disable
Day of the week language
4. Configure the date and time settings.
●
To reset the seconds to 00: Press (D).
1 is added to the minutes when the
current count is between 30 and 59
seconds.
●
For all the other settings, use (B) and (D)
to change the flashing setting.
Holding down (B) or (D) scrolls through
settings at high speed.
5. Repeat steps 3 and 4 to select time and
date settings.
6. Press (A) to complete the setting
operation.
Note
●
While the setting is being configured,
the watch will exit the setting operation
automatically after about two or three
minutes of non-operation.
Watch Operation Guide 5734
14
●
Switching between 12-hour and 24-
hour Timekeeping
You can specify either 12-hour format or 24-
hour format for the time display.
1. Enter the Timekeeping Mode.
l
Navigating Between Modes
2. Hold down (A) for at least two seconds.
Release the button when the name of the
currently selected Home City appears on
the display.
●
This is the setting mode. The hands
automatically shift out of the way for
easy viewing of the display and other
indicators.
Home City
3. Press (C) eight times.
This causes [12H] or [24H] to flash on the
display.
4. Press (D) to toggle the setting between
[12H] (12-hour timekeeping) and [24H]
(24-hour timekeeping).
24-hour timekeeping12-hour timekeeping
5. Press (A) to complete the setting
operation.
Note
●
While the setting is being configured,
the watch will exit the setting operation
automatically after about two or three
minutes of non-operation.
Using the Watch in a Medical
Facility or Aircraft
Whenever you are in a hospital, on an aircraft,
or in any other location where connection with
a phone may cause problems, you can
perform the procedure below to disable auto
time correction. To re-enable auto time
correction, perform the same operation again.
1. Enter the Timekeeping Mode.
l
Navigating Between Modes
2. Hold down (A) for at least two seconds.
Release the button when the name of the
currently selected Home City appears on
the display.
●
This is the setting mode. The hands
automatically shift out of the way for
easy viewing of the display and other
indicators.
Home City
3. Press (C) 12 times.
This displays [RCVD].
4. Press (D) to change the auto time
correction settings.
[OFF]: Auto time correction disabled.
[ON]: Auto time correction enabled.
5. Press (A) to complete the setting
operation.
Note
●
The auto time correction setting can be
changed only while the watch is paired
with a phone.
●
While the setting is being configured,
the watch will exit the setting operation
automatically after about two or three
minutes of non-operation.
World Time
World Time lets you look up the current time
in any one of 38 cities around the globe, and
UTC (Coordinated Universal Time).
Using CASIO WATCHES to
Configure World Time City
Settings
If the watch is paired with a phone, you can
also use the CASIO WATCHES phone app to
set the World Time city.
l
Configuring World Time Settings
Note
●
World Time cities that can be selected
only by using the CASIO WATCHES
phone app cannot be selected using
watch operations.
Checking World Time
1. Enter the World Time Mode.
l
Navigating Between Modes
After the currently selected World Time
City name appears, the watch will display
the current time in that city.
●
You can display the World Time City
while in the World Time Mode by
pressing (A).
World Time City
World Time
Watch Operation Guide 5734
15
Setting the World Time City
Use the procedure in this section to select a
World Time city. If you are in an area that
observes summer time, you can also
configure a summer time setting.
Note
●
The initial factory default summer time
setting for all cities is [AUTO]. In many
cases, the [AUTO] setting lets you use
the watch without switching between
summer time and standard time.
1. Enter the World Time Mode.
l
Navigating Between Modes
2. Use (D) to display the city you want.
●
Holding down (D) scrolls through
settings at high speed.
3. To change the summer time setting, hold
down (A) for at least two seconds.
Release the button when the current
summer time setting starts to flash.
●
This is the setting mode. The hands
automatically shift out of the way for
easy viewing of the display and other
indicators.
4. Use (D) to change the summer time
setting.
Each press of (D) cycles through settings
in the sequence shown below.
●
[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.
5. Press (A) to exit the setting screen.
Note
●
While the setting is being configured,
the watch will exit the setting operation
automatically after about two or three
minutes of non-operation.
●
While [UTC] is selected as the city, you
will not be able to change or check the
summer time setting.
●
If you select a World Time City with the
CASIO WATCHES phone app and
then change to a different city with a
watch operation, the CASIO
WATCHES city information is deleted
from the watch.
l
Configuring World Time Settings
Swapping Your Home Time
and World Time
In the World Time mode, press (A) and (B) at
the same time to swap your Home City time
with your World Time.
Home City Time
World Time
After swappingBefore swapping
Home City Time
World Time
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
Moving to Another Time Zone
Alarm
The watch will beep when an alarm time is
reached. You can set up to five different
alarms. The hourly time signal causes the
watch to beep every hour on the hour.
●
An alarm will not sound if the battery is low.
Using CASIO WATCHES to
Configure Alarm Settings
If the watch is paired with a phone, you can
also use the CASIO WATCHES phone app to
set alarms.
l
Configuring Watch Settings
Configuring Alarm Settings
1. Enter the Alarm Mode.
l
Navigating Between Modes
2. Press (D) to scroll through alarm numbers
([AL1] to [AL5]) until the alarm you want to
configure is displayed.
Alarm number
Alarm time
Watch Operation Guide 5734
16
3. Hold down (A) for at least two seconds.
Release the button when the hours digits
start to flash.
●
This is the setting mode. The hands
automatically shift out of the way for
easy viewing of the display and other
indicators.
●
While the setting is being configured,
the watch will exit the setting operation
automatically after about two or three
minutes of non-operation.
Alarm hour
4. Use (B) and (D) to change the hour setting.
●
Holding down (B) or (D) scrolls through
settings at high speed.
●
If you are using 12-hour timekeeping,
[P] indicates p.m.
5. Press (C).
This causes the minutes digits to flash.
Alarm minute
6. Use (B) and (D) to set the minute setting.
7. Press (A) to complete the setting
operation.
●
[ALM] is shown on the display while an
alarm is set.
Note
●
A beeper sounds for 10 seconds when
an alarm time is reached.
●
The watch will automatically return
from the Alarm Mode to the
Timekeeping Mode if you do not
perform any operation for about two or
three minutes.
●
To stop the alarm
Pressing any button while the beeper is
sounding stops it.
Enabling the Hourly Time
Signal
1. Enter the Alarm Mode.
l
Navigating Between Modes
2. Use (D) to display the hourly time signal
screen ([SIG]).
3. Press (A) to toggle the hourly time signal
between enabled and disabled.
●
[SIG] is displayed while the hourly time
signal is enabled.
Turning Off an Alarm or the
Hourly Time Signal
To stop an alarm or the hourly time signal from
sounding, perform the steps below to turn it
off.
●
To have an alarm or hourly time signal
sound again, turn it back on.
Note
●
Indicators are displayed while any of
the alarms or the hourly time signal is
turned on.
●
The applicable indicators are not
displayed while all of the alarms are
turned off and/or the hourly time signal
is turned off.
Hourly time signal
Alarm
1. Enter the Alarm Mode.
l
Navigating Between Modes
2. Use (D) to scroll through the alarm ([AL1]
to [AL5]) and hourly time signal ([SIG])
screens until the one you want to turn off
is displayed.
Alarm number or hourly time signal
Watch Operation Guide 5734
17
3. Press (A) to turn off the displayed alarm or
the hourly time signal.
●
Each press of (A) toggles between on
and off.
●
Turning off all of the alarms and the
hourly time signal causes [ALM] and
[SIG] to disappear from the display.
Note
●
If [ALM] remains on the display, it
means that at least one alarm is still
turned on. To turn off all of the alarms,
repeat steps 2 and 3 until the [ALM]
indicator is no longer displayed.
Moving to Another
Time Zone
Use the procedure below to easily change day
and time settings of the watch to a destination
location.
●
Before Boarding
1. Configure the World Time to the current
time at your destination.
Current time
Destination time
l
Using CASIO WATCHES to Configure
Settings
l
Using Watch Operations to Configure
Settings
2. Disable auto time correction.
l
Using the Watch in a Medical Facility or
Aircraft
●
After Arriving
1. Swap the origin time zone time with the
destination time zone time.
Destination time
Destination time
After swappingBefore swapping
l
Using CASIO WATCHES to Configure
Settings
l
Using Watch Operations to Configure
Settings
2. Enable auto time correction.
l
Using the Watch in a Medical Facility or
Aircraft
3. Correct the time setting.
l
Triggering Immediate Time Correction
Watch Operation Guide 5734
18
Stopwatch
The stopwatch measures elapsed time in
1/100-second units for the first hour, and in 1-
second units after that for up to 24 hours.
Measuring Elapsed Time
1. Enter the Stopwatch Mode.
l
Navigating Between Modes
2. Use the operations below to measure
elapsed time.
Stop
Resume
Stop
Start
●
Elapsed time is shown in 1/100-second
units for the first hour of the
measurement. After the first hour,
elapsed time is shown in one-second
units.
After first hourFirst hour
Minutes, seconds Hours, minutes
1/100 seconds Seconds
3. Press (A) to reset the measurement time
to all zeros.
Measuring a Split Time
1. Enter the Stopwatch Mode.
l
Navigating Between Modes
●
If a stopwatch timing operation is in
progress, press (D) to stop it and then
press (A) to reset the stopwatch to all
zeros before performing the operation
in step 2.
2. Use the operations below to measure
elapsed time.
●
Pressing (A) causes the display to
alternate between the elapsed time up
to that point (split time) and [SPL].
D
D
A
A
Stop
Split release
Split
Start
●
Elapsed time is shown in 1/100-second
units for the first hour of the
measurement. After the first hour,
elapsed time is shown in one-second
units.
After first hourFirst hour
Minutes, seconds Hours, minutes
1/100 seconds Seconds
3. Press (A) to reset the measurement time
to all zeros.
Timing the First and Second
Place Finishers
1. Enter the Stopwatch Mode.
l
Navigating Between Modes
2. Use the operations below to measure
elapsed time.
D
A
D
2nd Finisher*
1st Finisher*
Start
* The display alternates between the time
of the first place finisher and [SPL].
●
Elapsed time is shown in 1/100-second
units for the first hour of the
measurement. After the first hour,
elapsed time is shown in one-second
units.
After first hourFirst hour
Minutes, seconds Hours, minutes
1/100 seconds Seconds
3. Press (A) to display the time of the second
finisher.
4. Press (A) to reset the measurement time
to all zeros.
Watch Operation Guide 5734
19
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 will not sound if the battery is
low.
Using CASIO WATCHES 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 Watch Settings
Setting the Countdown Start
Time
The countdown start time can be set in 1-
second units up to 24 hours.
●
If a timer countdown operation is in
progress, reset the timer to its current start
time before performing this operation.
l
Using the Timer
1. Enter the Timer Mode.
l
Navigating Between Modes
2. Hold down (A) for at least two seconds.
Release the button when the hour setting
starts to flash.
●
This is the setting mode. The hands
automatically shift out of the way for
easy viewing of the display and other
indicators.
Hours
3. Use (B) and (D) to change the timer hours
setting.
●
Holding down (B) or (D) scrolls through
settings at high speed.
4. Press (C).
This causes the minutes digits to flash.
Minutes
5. Use (B) and (D) to change the minutes
setting.
6. Press (C).
This causes the seconds digits to flash.
Seconds
7. Use (B) and (D) to change the seconds
setting.
8. Press (A) to exit the setting screen.
Note
●
Setting a start time of [0:00 00]
performs a countdown of 24 hours.
●
While the setting is being configured,
the watch will exit the setting operation
automatically after about two or three
minutes of non-operation.
Using the Timer
1. Enter the Timer Mode.
l
Navigating Between Modes
Seconds
Hour, minute
2. Use the operations below to perform a
timer operation.
D
D
D
(Time up)
Resume
Pause
(Countdown starts)
Start
●
A beeper will sound for 10 seconds to
let you know when the end of a
countdown is reached.
●
You can reset a paused countdown to
its start time, by pressing (A).
3. Press any button to stop the tone.
Watch Operation Guide 5734
20
Hand Alignment
Adjustment
Strong magnetism or impact can cause the
time indicated by the analog hands to become
different from the time on the digital display. If
this happens, adjust hand alignment.
Using CASIO WATCHES to
Adjust Hand Alignment
If the watch is paired with a phone, you can
also use CASIO WATCHES to adjust hand
alignment.
l
Adjusting Hand Alignment
Adjusting Hand Alignment
1. Enter the Timekeeping Mode.
l
Navigating Between Modes
2. Hold down (A) for at least five seconds.
Release the button when [SUB] starts to
flash.
This enables adjustment of mode hand
alignment.
Mode hand
After five secondsAfter 3.5 seconds
3. If the mode hand is not pointing to
e
, use
(B) and (D) to align it with
e
.
4. Press (C).
This enables adjustment of the hour and
minute hands.
Minute handHour hand
5. If the hour and minute hands are not at 12
o’clock, use (B) and (D) to align them.
6. Press (A) to exit the setting screen.
Note
●
During hand alignment adjustment, the
watch automatically returns to the
Timekeeping Mode after two or three
minutes of non-operation.
Other Settings
This section explains other watch settings you
can configure.
Specifying the Day of the
Week Language
You can select any one of six languages for
the day of the week display in the Timekeeping
Mode.
1. Enter the Timekeeping Mode.
l
Navigating Between Modes
2. Hold down (A) for at least two seconds
until the name of the currently selected
Home City is displayed.
●
This is the setting mode. The hands
automatically shift out of the way for
easy viewing of the display and other
indicators.
Home City
3. Press (C) nine times.
This causes the language setting to flash.
4. Use (D) to select a language.
[ENG]: English
[ESP]: Spanish
[FRA]: French
[DEU]: German
[ITA]: Italian
[PyC]: Russian
5. Press (A) to exit the setting screen.
Note
●
While the setting is being configured,
the watch will exit the setting operation
automatically after about two or three
minutes of non-operation.
Watch Operation Guide 5734
21
Enabling the Button
Operation Tone
Use the procedure below to enable or disable
the tone that sounds when you press a button.
1. Enter the Timekeeping Mode.
l
Navigating Between Modes
2. Hold down (A) for at least two seconds
until the name of the currently selected
Home City is displayed.
●
This is the setting mode. The hands
automatically shift out of the way for
easy viewing of the display and other
indicators.
Home City
3. Press (C) 10 times.
This causes [KEY♪] or [MUTE] to flash on
the display.
4. Press (D) to select [KEY♪] or [MUTE].
[KEY♪]: Operation tone enabled.
[MUTE]: Operation tone muted.
5. Press (A) to exit the setting screen.
Note
●
While the setting is being configured,
the watch will exit the setting operation
automatically after about two or three
minutes of non-operation.
●
Note that alarm and timer tones will still
sound even while the operation tone is
muted.
Resetting Watch Settings
This section explains how to return the watch
settings below to their initial factory defaults.
●
Watch Settings
●
Stopwatch
●
Timer
●
Alarm
1. Enter the Timekeeping Mode.
l
Navigating Between Modes
2. Hold down (A) for at least two seconds
until the name of the currently selected
Home City is displayed.
●
This is the setting mode. The hands
automatically shift out of the way for
easy viewing of the display and other
indicators.
Home City
3. Press (C) twice.
This causes the seconds to flash.
Seconds
4. Hold down (B) for at least six seconds.
This will cause the [ALL] and [RESET]
indicators to alternate on the display.
Release the button when only [RESET] is
displayed.
5. Press (A) to exit the setting screen.
Note
●
While the setting is being configured,
the watch will exit the setting operation
automatically after about two or three
minutes of non-operation.
●
Resetting the watch will also delete
information for pairing the watch with a
phone, and unpair them.
Other Information
This section provides non-operational
information you also need to know. Refer to
this information as required.
City Table
City Offset
UTC
Coordinated
Universal Time
0
LON:
LONDON
London 0
PAR:
PARIS
Paris +1
ATH:
ATHENS
Athens +2
JED:
JEDDAH
Jeddah +3
THR:
TEHRAN
Tehran +3.5
DXB:
DUBAI
Dubai +4
KBL:
KABUL
Kabul +4.5
KHI:
KARACHI
Karachi +5
DEL:
DELHI
Delhi +5.5
KTM:
KATHMANDU
Kathmandu +5.75
DAC:
DHAKA
Dhaka +6
RGN:
YANGON
Yangon +6.5
BKK:
BANGKOK
Bangkok +7
HKG:
HONG KONG
Hong Kong +8
EUC:
EUCLA
Eucla +8.75
TYO:
TOKYO
Tokyo +9
ADL:
ADELAIDE
Adelaide +9.5
SYD:
SYDNEY
Sydney +10
LDH:
LORD HOWE
ISLAND
Lord Howe
Island
+10.5
NOU:
NOUMEA
Noumea +11
WLG:
WELLINGTON
Wellington +12
CHT:
CHATHAM
ISLAND
Chatham
Islands
+12.75
TBU:
NUKUALOFA
Nuku’alofa +13
CXI:
KIRITIMATI
Kiritimati +14
Watch Operation Guide 5734
22
City Offset
BAR:
BAKER ISLAND
Baker Island -12
PPG:
PAGO PAGO
Pago Pago -11
HNL:
HONOLULU
Honolulu -10
NHV:
MARQUESAS
ISLANDS
Marquesas
Islands
-9.5
ANC:
ANCHORAGE
Anchorage -9
LAX:
LOS ANGELES
Los Angeles -8
DEN:
DENVER
Denver -7
CHI:
CHICAGO
Chicago -6
NYC:
NEW YORK
New York -5
YHZ:
HALIFAX
Halifax -4
YYT:
ST. JOHN’S
St. John’s -3.5
RIO:
RIO DE JANEIRO
Rio de Janeiro -3
FEN:
F. DE NORONHA
Fernando de
Noronha
-2
RAI:
PRAIA
Praia -1
●
The information in the above table is current
as of July 2024.
●
Time zones may change and UTC
differentials may become different from
those shown in the table above. If this
happens, connect the watch with a phone
to update the watch with the latest time zone
information.
Summer Time Table
When [AUTO] is selected for a city that
observes summer time, switching between
standard time and summer time will be
performed automatically at the timing shown
in the table below.
Note
●
Summer time start and end dates for
your current location may be different
from those shown below. If this
happens, you can have new summer
time information for your Home City
and World Time City sent to the watch
by connecting the watch with a phone.
If the watch is not connected with a
phone, you can change the summer
time setting manually.
City Name
Summer Time
Start
Summer Time
End
London
01:00, last
Sunday in March
02:00, last
Sunday in
October
Paris
02:00, last
Sunday in March
03:00, last
Sunday in
October
Athens
03:00, last
Sunday in March
04:00, last
Sunday in
October
Tehran
00:00, March 22
or 21
00:00,
September 22 or
21
Sydney,
Adelaide
02:00, first
Sunday in
October
03:00, first
Sunday in April
Lord Howe
Island
02:00, first
Sunday in
October
02:00, first
Sunday in April
Wellington
02:00, last
Sunday in
September
03:00, first
Sunday in April
Chatham
Islands
02:45, last
Sunday in
September
03:45, first
Sunday in April
Anchorage
02:00, second
Sunday in March
02:00, first
Sunday in
November
Los
Angeles
02:00, second
Sunday in March
02:00, first
Sunday in
November
Denver
02:00, second
Sunday in March
02:00, first
Sunday in
November
Chicago
02:00, second
Sunday in March
02:00, first
Sunday in
November
New York
02:00, second
Sunday in March
02:00, first
Sunday in
November
Halifax
02:00, second
Sunday in March
02:00, first
Sunday in
November
St. John’s
02:00, second
Sunday in March
02:00, first
Sunday in
November
●
The information in the above table is current
as of January 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 when time
correction by communication with a phone
is not possible.
Timekeeping :
Analog
Hour, minute (moves every 20 seconds)
Digital
Hour, minute, second, day, day of the
week
a.m./p.m.(P)/24-hour timekeeping
Full Auto Calendar (2000 to 2099)
Summer Time
World Time :
38 cities (38 time zones) and Coordinated
Universal Time (UTC)
Summer time
Home City Time swapping
Stopwatch :
Measurement unit:
1/100 second (first hour)
1 second (after first hour)
Measuring range: 23 hours 59 minutes 59
seconds
Measurement Functions:
Elapsed time, split times, 1st and 2nd
place finisher times
Timer :
Measuring unit: 1 second
Countdown range: 24 hours
Setting unit: 1 second
10-second beeper when the end of the
countdown is reached
Alarm :
Time alarm
Number of alarms
5
Setting units
Hours, minutes
Alarm tone duration: 10 seconds
Hourly time signal: Beep every hour on the
hour
Watch Operation Guide 5734
23
Mobile Link :
Auto Time Correction
Time setting corrected automatically at
preset time
One-touch Time Correction
Manual connection and time correction
Phone finder
Watch operation sounds the alert sound
of the mobile phone
World Time
Current time for approximately 300 cities
selected for the watch
Home Time/World Time swapping
Auto Summer Time Switching
Automatic switching between standard
time and summer time
Timer Settings
Alarm Settings
Hand alignment correction
TIME&PLACE
Data Communication Specifications
Bluetooth
®
Frequency Band: 2400MHz to 2480MHz
Maximum Transmission: 0 dBm (1 mW)
Communication range: Up to 2 meters
(depends on environment)
Double LED light :
Face LED light: Super Illuminator,
afterglow, selectable illumination duration
(approximately 1.5 seconds or 3 seconds)
LCD LED backlight: Super Illuminator,
afterglow, selectable illumination duration
(approximately 1.5 seconds or 3 seconds)
Other :
Day of the week language setting, auto time
correction on/off, operation tone on/off,
Hand Shift
Power Supply :
SR726W x 2
Battery nominal voltage: 1.55V
Battery life: Approximately 2 years
Conditions:
Auto time correction using a smartphone:
4 times/day
Alarm: Once (10 seconds)/day
Illumination: Once (1.5 seconds)/day
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
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 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 the CASIO WATCHES
phone app. 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 5734
24
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 the CASIO WATCHES
phone app is running on the phone. On
your phone’s Home Screen, tap the
“CASIO WATCHES” icon. Next, on the
watch, hold down (C) for at least three
seconds.
Have you tried turning your phone off and
then back on again?
Turn your phone off and then back on, and
then tap the “CASIO WATCHES” icon.
Next, on the watch, hold down (C) for at
least three seconds.
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 (C) for at least three seconds.
Q3
I changed the phone’s Bluetooth
from enabled to disabled, and now I
can’t connect anymore.
On your phone, re-enable Bluetooth, and then
go to the Home Screen and tap the “CASIO
WATCHES” icon. Next, on the watch, hold
down (C) for at least three seconds.
Q4
I can’t connect after turning off the
phone.
Turn your phone off and then back on, and
then tap the “CASIO WATCHES” icon. Next,
on the watch, hold down (C) for at least three
seconds.
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 your phone off and then back on, and
then tap the “CASIO WATCHES” icon.
Next, on the watch, hold down (C) for at
least three seconds.
Has the watch been re-paired with the
phone?
After deleting pairing information from the
CASIO WATCHES phone app, re-pair
them.
l
Deleting Pairing Information from the
CASIO WATCHES phone app
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
Connecting the current watch to
another 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 5734
25
Auto Time Correction by
Bluetooth Connection (Time
Correction)
Q1
When does the watch correct its
time?
The watch will connect with the phone and
perform auto time correction at around 12:30
a.m., 6:30 a.m., 12:30 p.m. and 6:30 p.m. The
connection is automatically terminated after
auto time correction is complete.
Q2
Auto time correction is not performed
at a scheduled time.
Is auto time correction not being
performed according to its normal
schedule?
Note that auto time correction is not
performed for 24 hours after swapping of
the Home Time and World Time, or after
the time setting is corrected manually on
the watch. Auto time correction will
resume 24 hours after either of the above
operations is performed.
Is auto time correction enabled?
Auto time correction will not be performed
at the scheduled times if it is not enabled.
Enable auto time correction.
l
Using the Watch in a Medical Facility or
Aircraft
Q3
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 correct the time setting.
Q4
Hands are out of alignment.
Strong magnetism or impact can cause the
hands to go out of alignment. Adjust hand
alignment.
l
Adjusting Hand Alignment
●
Check the information below to find out how
to align the hands manually.
l
Hand Alignment Adjustment
Alarm and Hourly Time
Signal
Q1
An alarm does not sound.
The alarm’s settings may not be configured.
Configure the alarm settings.
l
Configuring Alarm Settings
Q2
The hourly time signal does not
sound.
The hourly time signal may be disabled.
Enable the hourly time signal.
l
Enabling the Hourly Time Signal
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
Q2
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.
●
Watch is connected with a phone to correct
its time setting.
l
Auto Time Correction
Q3
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
Setting a Home City
Q4
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
Setting a Home City
Q5
The time indicated by the hands is
different from the digital time.
Strong magnetism or impact can cause the
hands to go out of alignment. Adjust hand
alignment.
l
Adjusting Hand Alignment
●
Check the information below to find out how
to align the hands manually.
l
Hand Alignment Adjustment
Other
Q1
I can’t find the information I need
here.
Visit the website below.
https://world.casio.com/support/
Watch Operation Guide 5734
26
