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Operation Guide 3367
2
❚
Charging Guide
Starting from a full charge, the
watch should be able to continue
operating for about nine months
without further charging under the
conditions described below.
Daily Use (All time values are
approximate.)
• Face Illumination:
1.5 seconds
• Alarm: 10 seconds
• Signal reception: 4 times
Making sure the watch is regularly
exposed to light ensures stable
operation.
• Charge Times Required to Advance to a Higher Level
Approximate Exposure Time
Level 4 \ Level 3 \ Level 2 \ Level 1
– – – – – –
3 hours
12 hours41 hours
7 hours
11 hours
120 hours
43 hours155 hours
69 hours251 hours
Exposure Level
(Brightness)
Outdoor Sunlight
(50,000 lux)
Daylight Through a Window on
an Overcast Day (5,000 lux)
Indoor Fluorescent
Lighting (500 lux)
Sunlight Through a
Window (10,000 lux)
• Note that the above charging times are for reference only. Actual
charging time depends on a variety of environmental factors.
Required Daily Charging Time
•
The following is the daily
amount of charging required
each day to support the
operations under “Daily Use”.
Exposure Level
(Brightness)
Outdoor Sunlight
(50,000 lux)
8 minutes
30 minutes
48 minutes
8 hours
Sunlight Through
a Window
(10,000 lux)
Daylight Through a
Window on an Overcast
Day (5,000 lux)
Indoor
Fluorescent
Lighting (500 lux)
Approximate
Exposure
Time
Power Saving
Power Saving causes the watch to automatically enter a sleep state and save power whenever the watch is left in the dark. The Power
Saving feature of the watch is turned on at the factory.
• Note that the watch may also enter the sleep state if the watch is blocked from light by your sleeve.
• The watch will not enter the sleep state if it is in the Stopwatch Mode.
❚
How the sleep state works
Display sleep state
The display sleep state is triggered whenever the watch is left in the
dark for about one hour between the times of 10:00 p.m. and 6:00 a.m.
• The display sleep state causes the display to go blank, except for
a flashing Power Saving indicator. The alarm and the hourly time
signal continue to operate normally while the watch is in the
display sleep state. Even when the watch is in the sleep state,
digital-analog time coordination and time calibration signal auto
receive are both performed.
Function sleep state
The function sleep state is triggered whenever the watch is left in
the dark for six or seven days.
• The alarm and the hourly time signal are disabled while the watch
is in the function sleep state. In the function sleep state, the
analog hands remain stopped at the 12 o’clock position, and time
calibration signal auto receive is not performed.
• Digital timekeeping functions continue to operate normally in the
function sleep state.
Power Saving
Indicator
❚
To recover from the sleep state
Move the watch to a brightly lit location or press any button. The
watch will also recover from the sleep state if you angle it towards
your eyes for reading (see “Positioning Your Arm Correctly”).
• It can take up to two seconds before display figures re-appear
after you place the watch in a well-lit area.
❚
To turn Power Saving on and off
Use the procedure under “To configure home time settings” to turn
Power Saving on or off.
Leaving the watch in a drawer or anywhere else it is dark can
cause Power Saving to trigger in order to conserve battery
power.
❚
Positioning Your Arm Correctly
• You should be wearing the watch on the outside of your wrist
when using the auto light switch.
• Make sure that the left (9 o’clock) and
right (3 o’clock) sides of the watch are
within ±15 degrees of being parallel
with the ground. The auto light switch
may not operate properly if the angle is
greater.
Important!
• The light may be difficult to see if you turn it on under bright
sunlight.
• If you press the B button or if an alarm operation starts while the
face is illuminated, illumination will turn off.
• Face illumination does not work while you are performing a time
calibration signal manual receive operation.
Auto Light Precautions
• Frequent use of the auto light can run down the battery.
• The auto light switch may cause the face to illuminate when your
sleeve covers the face of the watch.
• The face may not illuminate immediately when you angle the
watch towards your face. This does not indicate malfunction.
• The face remains illuminated for the currently set duration (1.5 or
3 seconds) only, even if you leave the watch angled towards your
face.
• The auto light switch is automatically disabled whenever battery
power is at Level 3 or lower.
• The face may illuminate unintentionally when you wear the watch
on the inside of your wrist, when you shake your arm, or when
you raise your arm. Be sure to turn off the auto light switch
whenever you do not need face illumination.
• Keep the auto light switch turned off whenever you are wearing
the watch on the inside of your wrist.
• Electro-static charge and magnetism can interfere with auto light
operation and even make operation impossible. If this happens,
lower your arm to the starting position and then raise it again. If
you still have trouble with illumination, try lowering your arm down
to your side and then raise it to your face for reading.
• The auto light switch is automatically disabled when the watch is
in the Hand Setting Mode.
Rotate your arm so the watch
is angled at about 40 degrees,
so you can read its face.
With the watch on
your wrist, position it
level with the ground.
11
11
1
22
22
2
At least
40
degrees
An LED light is used to illuminate the face of the watch for easy
reading in the dark. An auto light switch automatically illuminates
the face when you angle the watch towards your eyes for reading.
❚
To illuminate the face manually
Press the
BB
BB
B button in any
mode to illuminate the face of
the watch.
• You can use the procedure under
“To specify the illumination
duration” to configure the
illumination duration as
approximately 1.5 seconds or 3
seconds.
• Pressing the B button illuminates the face regardless of whether
the auto light switch is on or off.
You may hear a faint rattling sound when you move the watch
around. This sound is caused by the movement of a metal
bulb that controls operation of the auto light switch, and does
not indicate malfunction.
❚
To illuminate the face with the auto light
switch
The auto light switch automatically illuminates the face
whenever you angle the watch towards your eyes for reading,
but only when it is dark.
• The auto light switch does not illuminate the face when
surrounding light is bright.
You can use the procedure under “To specify the illumination
duration” to configure the illumination duration as
approximately 1.5 seconds or 3 seconds.
❚
To turn the auto light switch on and off
While a setting screen (one on which a setting is flashing) is on
the display, hold down the B button for about two seconds to
toggle the auto light switch on (auto light switch on indicator
displayed) and off (no indicator displayed).
Auto Light Switch
On Indicator
Face Illumination
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