Operation Guide 5019
1
MO0710-EA
Getting Acquainted
Congratulations upon your selection of this CASIO watch. To get the most out
of your purchase, be sure to read this manual carefully.
Keep the watch exposed to bright light
The electricity generated by the solar cell of the
watch is stored by a built-in battery. Leaving or
using the watch where it is not exposed to light
causes the battery to run down. Make sure the
watch is exposed to light as much as possible.
• When you are not wearing the watch on your
wrist, position the face so it is pointed at a
source of bright light.
• You should try to keep the watch outside of
your sleeve as much as possible. Even if the
face of the watch is only partially blocked from
light, charging will be reduced significantly.
l
l
l
l
l
l
l
l
l
l
l
Bright light
Solar cell
Bright light
Electrical
energy
All
functions
enabled.
LEVEL 1
LEVEL 2
Charge
Solar cell
(Converts light to
electrical power.)
Rechargeable battery
LEVEL 1
LEVEL 2
Some
functions
disabled.
Dis-
charge
Battery charges in the light.
Battery discharges in the dark.
• The watch continues to operate even when it is not exposed to light.
Leaving the watch in the dark can cause the battery to run down, which will
cause some watch functions to be disabled. If the battery goes dead, you
will have to re-configure watch settings after recharging. To ensure normal
watch operation, be sure to keep it exposed to light as much as possible.
• The actual level at which some functions are disabled depends on the
watch model.
• Be sure to read “Power Supply” for important information you need to
know when exposing the watch to bright light.
If the analog hands aren’t moving...
If the analog hands aren’t moving, it means that the power saving mode has
stopped them to save battery power.
• See “Power Saving” for more information.
• The hands also stop when the watch’s battery runs down.
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 this product or its malfunction.
About This Manual
• Button operations are indicated using the
letters shown in the illustration.
• Each section of this manual provides you with
the information you need in order to perform
operations in each mode. Further details and
technical information can be found in the
“Reference” section.
Hour hand
Minute hand
Day of the
week hand
Second hand
Day hand
24-hour
hand
Timekeeping Mode Stopwatch Mode
Press B.
Press C.
▲
▲
General Guide
Manual Receive
Time/Date Adjustment
Receive Status Check
Timekeeping Mode
▲
▲
Press any button.
Hold down B for
about two seconds.
Press B.
Hold down B for
about five seconds.
Press B.Press B.
▲
▲
▲
▲
Radio-controlled Atomic Timekeeping
Your watch receives a time calibration signal and
updates its time setting accordingly.
• This watch is designed to receive the time
calibration signal transmitted from Shangqiu
City, Henan Province, China (Call Sign: BPC,
Frequency: 68.5 kHz).
• As of July 2007, China does not use Daylight
Saving Time (DST). If China does go to the
Daylight Saving Time system in the future,
some functions of this watch may no longer
operate correctly.
• See the information under “Signal Reception
Troubleshooting” if you experience problems
with time calibration signal reception.
Transmitter
Long-wave
time
calibration
signal
Watch
Chinese Time Calibration Signal
The Chinese time calibration signal (BPC) is maintained by the National Time
Service Center (http://www.ntsc.ac.cn/) of the Chinese Academy of Sciences,
and is transmitted from a transmitter (68.5 kHz) located in Shangqiu. The time
data of the Chinese time calibration signal is maintained by the National Time
Service Center.
• Note that transmission of the calibration signal may be interrupted
occasionally due to maintenance, lightning, etc.
Current Time Setting
This watch adjusts its time setting automatically in accordance with a time
calibration signal. You also can perform a manual procedure to set the time
and date, when necessary.
• When using the watch in an area the Chinese time calibration signal does
not reach or outside the China time zone (GMT +8), you will need to adjust
the watch’s time setting manually. For information about adjusting the time
setting manually, see “Timekeeping”.
• The watch interprets any manual change of the time setting by more than
30 minutes or manual switching between Standard Time and Daylight
Saving time as a change to another time zone. At this time the watch turn
off auto receive automatically.
• If you successfully perform a manual receive operation after auto receive is
turned off automatically by one of the events described above, the watch
will turn auto receive back on automatically.
• Even if the time calibration signal is received correctly, there are some
times when the analog hands may not indicate the correct time. If this
happens, use the procedures under “Adjusting the Home Positions” to
check the home positions of the hands, and make adjustments as required.
