Operation Guide 4323 (GMS)
1
MA0811-EA
Before using the watch...
Expose the watch to light.
Your watch runs on electrical power generated from light, which is stored by a chargeable battery. Long-
term storage of the watch can cause power to run low, so be sure to expose the watch to light for some
time before using it for the fi rst time. For information about charging time, see “Power Supply.”
Power Saving
Power Saving causes the watch to enter a sleep state automatically and stop movement of the analog
hands in order to save power whenever the watch is left in the dark.
The watch will exit the sleep state if you expose it to light or perform any button operation.
•
Note that the watch also may enter the sleep state and stop if its face is blocked from light by your
sleeve.
How the sleep state works
Sleep Level 1
Sleep Level 1 is triggered whenever the watch is left in the dark for about one hour any time between the
hours of 10 p.m. and 6 a.m.
•
The second hand will stop at 12 o’clock.
•
The hour and minute hands continue to operate normally.
Sleep Level 2
Sleep Level 2 is triggered whenever the watch is left in the dark while in Sleep Level 1 for six or seven
days.
•
Hour, minute, and second hands stopped at 12 o’clock
•
Auto Receive disabled
•
Timekeeping continues internally.
General Guide
(OURHAND
3ECONDHAND
4OCHECKTHERESULTOFTHE
LASTRECEIVEOPERATION
-ANUAL2ECEIVE
-INUTEHAND
3UCCESSFUL
7HILERECEPTION
ISINPROGRESS
5NSUCCESSFUL
!TTHESTARTOFTHE
RECEIVEOPERATION
!BOUTSECONDS
OR
A
button
•
Press to view the last receive result.
•
Hold down for about two seconds to trigger time calibration signal manually.
B
button
•
This button is used when correcting hand home positions and when setting the time.
■
To check the result of the last signal receive operation
During normal timekeeping, press the
A
button.
•
This will enter the last signal receive mode. The second hand to move to “Y” (or “YES”) if the last
receive operation was successful or to “N” (or “No”) if the last receive operation was unsuccessful.
•
Press the
A
button to exit the last signal receive mode.
•
The watch will exit the last signal receive mode automatically if you do not perform any button operation
for one or two minutes.
Power Supply (Charging)
Your watch runs on electrical power generated from light, which is stored by a chargeable battery.
To ensure stable operation, make sure that the watch is exposed to light as much as possible.
•
Whenever you are not wearing the watch on your
wrist, position it so the face (solar cell) is pointed
in the direction of a source of bright light.
•
When wearing the watch, try to keep your
sleeve from blocking its face, where the solar
cell is located.
3OLARCELL
,IGHT
Leave the watch under fl uorescent lighting, near a
window, etc.
Charging effi ciency is reduced signifi cantly
even if the face of the watch is covered only
partially by your sleeve.
How the solar cell and battery work
While the watch is exposed to light...
While the watch is not exposed to light...
,IGHT
3OLARCELL
,IGHTCHARGES
THEBATTERY
%LECTRICALENERGY
#HARGE
0OWERSUPPLIEDTOWATCH
2ECHARGEABLE
BATTERY
2ECHARGEABLE
BATTERY
$ISCHARGE
0OWERSUPPLIEDTOWATCH
Your watch continues to operate even when
it is not exposed to light. Leaving the watch in
the dark can run down its battery and cause
functions to become disabled.
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
Depending on the light source you are using, the case of the watch may become quite
hot when charging. Take care to guard against burn injury after charging.
Dead Battery
(ANDSSTOPATOCLOCK
$EAD"ATTERY
The following conditions apply when the battery is dead.
•
Timekeeping stops.
•
Auto receive and manual receive are disabled.
•
Second hand stops immediately at 12 o’clock.
•
Hour and minute hands stop at 12 o’clock at noon.
•
Even if the battery level drops to the point that timekeeping stops, you
still will be able to recharge the battery and use the watch again.
•
After you recharge the battery after it drops to a level where
timekeeping stops, the hands will move automatically to the current
time setting.
•
Try to keep the watch exposed to light as much as possible during
normal use.
Charging Guide
Required Charging Time for One Day of Operation
The values in this section are base on six minutes of signal reception and 10 seconds of alarm operation
per day.
Exposure Level (Brightness)
Charging Time
Outdoor Sunlight (50,000 lux)
9 minutes
Sunlight through a Window (10,000 lux)
32 minutes
Daylight through a Window on an Overcast Day (5,000 lux)
51 minutes
Indoor Fluorescent Lighting (500 lux)
8 hours
Making sure the watch is exposed to light ensures stable operation.
Approximate Charge Times Required to Advance to a Higher Level
Exposure Level (Brightness)
Charging Time
Until Hand
Movement Restarts
Until Full Charge
Outdoor Sunlight (50,000 lux)
3 hours
19 hours
Sunlight through a Window (10,000 lux)
9 hours
68 hours
Daylight through a Window on an Overcast Day (5,000 lux)
14 hours
110 hours
Indoor Fluorescent Lighting (500 lux)
146 hours
− − −
•
Note that the above charging times are for reference only. Actual charging time depends on a variety of
environmental factors.
