Operation Guide 2763
1
MA0310-EA
Each press of the
CC
CC
C button sounds a confirmation tone and cycles through available modes in the sequence shown below.
• The watch will automatically revert to the Timekeeping Mode if you leave it in the Alarm Mode (excetp for the Target Alarm screen),
Recall Mode, or Hand Setting Mode without performing any operation for about two or three minutes.
Stopwatch Mode
Alarm Mode
Recall Mode
Dual Time Mode
Measured Value
TIME
DIFFERENCE
Alarm Number
Alarm Time
Moves to 12 o’clock
position and stops.
Current battery level
Current time seconds count
Time Zone
Time in selected
time zone
Timekeeping Mode
Hand Setting Mode
PM Indicator
(no indicator for AM)
Receive Icon
Battery Level
Indicator
(Switches
display screen)
(Changes mode)
Mode Name
Day of the Week
Month Day
Hour
Minutes
Seconds
Month
Year
Day
(Illuminates display)
button
button
button
button
Switching Between Screens
Each press of the button cycles through available modes in
the sequence shown below.
Days of the Week
SU : Sunday MO : Monday TU : Tuesday
WE : Wednesday TH : Thursday FR : Friday
SA : Saturday
• For information about the battery indicator, see “Battery
Indicator”. For information about the receive icon, see
“Receive Icon”.
Hour Hand Stopwatch 1/20-second
Hand
Minute Hand
24-hour handSecond Hand
Modes and Display Screens
• The analog hands are not shown in the face illustrations shown in this User’s Guide.
The power supply of this watch uses a solar cell to generate
electrical power, which is stored by a rechargeable battery. Using
or storing the watch where it is not regularly exposed to light, 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 drop to Level 4.
❚
Battery Indicator
Level 1
Level 2
Level 3
Level 4
All functions enabled.
All functions enabled.
Display, display illumination, alarms,
hourly time signal, signal reception,
and analog timekeeping disabled.
All functions, including digital
timekeeping, disabled.
• In the Stopwatch Mode, the battery indicator operates as the
stopwatch minute hand.
• Exposing the watch to direct sunlight or other strong light may
cause the battery level indicator to momentarily indicate a level
that is higher than the actual battery level. Because of this, you
should wait for a short while after charging to check the battery
level indicator.
• Signal reception will become enabled again when the battery is
recharged up to Level 2.
• Even after the battery drops to Level 4, watch operation will
resume as soon as charging starts. However, you should wait until
the battery reaches Level 2 before setting the time and date.
❚
Start charging at Level 3!
Battery Level 3 indicates that remaining battery power is very low.
Be sure to expose the watch to light for recharging as soon as
possible after the battery level indicator shows Level 3.
❚
Flashing Recovering Indicator
If you use the light or alarms a number of times during a short
period, a Recovering indicator flashes on the display and the
following operations become disabled as battery power recovers.
• Display illumination
• Alarm and hourly time signal
• Time calibration signal reception
• Analog timekeeping
Normal operation will return after the
battery recovers.
Power Supply
Recovering Indicator
❚
Charging Precautions
Avoid charging the watch in the following locations, and anywhere
else 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.
❚
Charging the Battery
Point the solar panel (face) of the watch at a light source.
• Remember that even a partial blockage of the solar cell reduces
charging efficiency.
Example: Positioning the watch
Solar Cell
• The illustration shows the resin band model.
❚
Charging Guide
Starting from a full charge, the watch
should be able to continue operating
for about five months without further
charging under the conditions
described below.
Daily Use (All time values are
approximate.)
• Display Illumination: 1.5
seconds
• Alarms: 10 seconds
• Signal reception: 5 times
• Digital and analog
timekeeping
Making sure the watch is regularly
exposed to light ensures stable
operation.
• Charge Times Required to Advance to a Higher Level
Charging Time
Level 4 \ Level 3 \ Level 2 \ Level 1
– – – – – –
– – – – – –
1 hr.
4hr.14hr.
3 hr.
5 hr.
49hr.
20hr.71hr.
Environment
(Luminosity)
Outdoor sunlight
(50,000 lux)
Indoor sunlight
(10,000 lux)
Outdoor overcast
(5,000 lux)
Fluorescent indoor
lighting (500 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”.
Environment
(Luminosity)
Outdoor sunlight
(50,000 lux)
Indoor sunlight
(10,000 lux)
Outdoor overcast
(5,000 lux)
Fluorescent indoor
lighting (500 lux)
5min.
24min.
48min.
8hr.
Charging
Time
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