Table of Contents
Advertisement
Power Supply
The power supply of this watch uses a solar panel to generate
electrical power, which is stored by a rechargeable battery. Using
or storing the watch where it is not exposed to light regularly or
allowing it to be blocked from light by your sleeve as you are
wearing it can cause the power of the rechargeable battery to run
down. To ensure stable operation, be sure to allow the watch to be
exposed to light as much as possible when you are wearing or
storing it.
Note that all data in memory and all settings are cleared
whenever you allow the level of the rechargeable battery
to go dead.
Flashing RECOV Indicator
If you use the light or alarms a number of times during a short
period, a RECOV (recover) indicator flashes on the display and
the following operations become disabled as battery power
recovers.
• Illumination
Recover Indicator
• Alarm and hourly time signal
• Time up beeper
• Time calibration signal reception
Normal operation will return after the
battery recovers.
Power Saving
Power Saving causes the watch to enter a sleep state automatically in order to save power whenever it 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.
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 hours of 10 p.m. and 6 a.m.
• The display sleep state causes the display to go blank, except
for a flashing Power Saving indicator. Alarms and the hourly
time signal continue to operate normally while the watch is in
the display sleep state.
• The watch does not enter the sleep state if it is in the Timer
Mode or Stopwatch Mode.
Power Saving Indicator
• Function sleep state
The function sleep state is triggered whenever the watch is left
in the dark for six or seven days.
• The Power Saving indicator stops flashing and remains on the
display, and the following functions are disabled. Alarms and
the hourly time signal are also disabled while the watch is in
the function sleep state.
Time calibration signal reception is not performed while the
watch is in the function sleep state.
• Digital timekeeping functions continue to operate normally.
Operation Guide 3040
Low Battery Indication
When rechargeable battery power goes low, the watch will start to
disable some of its functions and "LOW" will flash on the display in
the Timekeeping Mode. If the dual time screen is displayed, the
screen will change automatically to the home time screen.
If you continue using the watch without charging the battery, more
functions will become disabled and "CHG" will start to flash on the
display. Be sure to recharge the battery by exposing the watch to
light as soon as possible at the first sign of low battery power.
Frequent flashing of the RECOV indicator also means that the
battery is low. Expose the watch to light to charge the battery.
Display Indication
Disabled Functions
Timekeeping Mode
Display illumination, alarms, hourly
time signal, time up beeper, and other
alerts, and time calibration signal
reception.
Display, display illumination, alarms,
hourly time signal, time up beeper, and
other alerts, and time calibration signal
reception.
• When the rechargeable battery goes completely dead, the display
will go blank and timekeeping will stop. These functions will be
restored when the battery is recharged.
• When you start to recharge the battery after it does dead, "CHG"
will start flashing on the display. However, watch functions will not
yet be re-enabled at this time. Keep the watch exposed to light
until the flashing "CHG" indicator disappears from the display.
❚ To recover from the sleep state
Move the watch to a brightly lit location or press any button.
• 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
See the procedure under "To configure Home City settings" for
information about turning off Power Saving.
Leaving the watch in a drawer or anywhere else it is dark can
cause Power Saving to trigger in order to conserve battery
power.
Charging Precautions
Avoid charging the watch in the following locations, and anywhere
else where the watch may become very hot.
• On the dashboard of an automobile parked in the sun
• Very close to an incandescent light source or other sources of
heat
• In a location exposed to direct sunlight for long periods
Note that the display panel may become black under very high
temperatures. This is temporary, and the display will appear
normal again at lower temperatures.
Depending on the light source you are using, the
case of the watch may become quite hot during
charging. Take care to guard against burn injury after
charging.
❚ To charge the battery
Point the solar panel (face) of the watch at a light source.
• Remember that even a partial blockage of the solar panel reduces
charging efficiency.
Example: Positioning the watch
Solar panel
• The illustration shows the resin band model.
Illumination
In any mode (except when a setting screen is on the display),
press the B button to illuminate the display for easy reading in
the dark.
• Illumination may be difficult to see under bright sunlight.
• Illumination turns off automatically if an operation tone or alarm
sounds.
• Illumination will not turn on while manual receive is in progress.
• You may notice a slight sound from the watch while illumination is
turned on. This is the sound of EL panel vibration and does not
indicate malfunction.
Charging Guide
Required Daily Charging Time
• The following is the daily amount
Starting from a full charge, the watch
of charging required each day to
support the operations under
should be able to continue operating
"Example of Daily Use".
for about eight months without
further charging under the example
Approximate
Exposure Level
Exposure
conditions described below.
(Brightness)
Example of Daily Use
Outdoor Sunlight
• Illumination: 1.5 seconds/day
8 minutes
(50,000 lux)
• Alarm: 10 seconds/day
Sunlight through a
• Signal Reception: 10 minutes/day
Window
30 minutes
• Digital Display: 18 hours/day
(10,000 lux)
Making sure the watch is exposed to
Overcast Daylight
light regularly ensures stable
through a Window
48 minutes
operation.
(5,000 lux)
Indoor Fluorescent
8 hours
Lighting (500 lux)
• Charge Times Required to Charge the Battery
Approximate Exposure Time
Exposure Level
(Brightness)
Charge Indicator Off
\
Full Charge
Outdoor Sunlight
2 hours
38 hours
(50,000 lux)
Sunlight through a
Window
5 hours
141 hours
(10,000 lux)
Overcast Daylight
through a Window
8 hours
229 hours
(5,000 lux)
Indoor Fluorescent
83 hours
– – –
Lighting (500 lux)
• Note that the above charging times are for reference only. Actual
charging time depends on a variety of environmental factors.
Operation Tone
The tone that sounds to signal a mode change or other operation
can be turned on and off.
❚ To turn the operation tone on or off
MUTE Indicator
When any screen besides a
setting screen (one with a
flashing setting) is on the
display, hold down the C
C
C
C
C
button for about three
seconds.
• This will cause the operation tone
to sound and then toggle the
operation tone on or off.
• A MUTE indicator is on the
display while the operation tone
is off.
• Holding down the C button also
changes the watch's current
mode.
• The alarm, hourly time signal,
and timer time up beeper
continue to sound, even when
the operation tone is turned off.
Time
2
Advertisement
Table of Contents
