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Operation Guide 4325 4326
1
MO0708-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.
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Bright light
Solar cell
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
blocked only partially from light, charging will be reduced
significantly.
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
All 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 whenever the battery level reaches Level 2.
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 to perform operations in each
mode. Further details and technical information can be
found in the “Reference” section.
Hour hand
Minute hand
Second hand
Receive Result Mode
Home Position
Adjustment Mode
▲
▲
General Guide
• This watch is designed so the function of a button is executed when you release the
button, not when you press it.
• Use A and B to change from mode to mode as shown below.
Press A.
▲
Timekeeping Mode
▲
Press A twice.
While holding down B, hold
down A for about five seconds.
Manual Receive
Press any
button.
▲
Hold down A for about two
seconds.
▲
Radio-controlled Timekeeping
This watch receives a time calibration signal and updates its time setting accordingly.
The time calibration signal includes both Standard Time and Daylight Saving Time
(summer time) data.
• This watch switches automatically between Standard Time and Daylight Saving Time
in accordance with the time calibration signal it receives. There is no indicator
showing whether the time currently shown by the watch is Standard Time or Daylight
Saving Time.
• This watch is designed to pick up the time calibration signal transmitted in Germany
(Mainflingen) and England (Anthorn).
• See the information under “Signal Reception Troubleshooting” if you experience
problems with time calibration signal reception.
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, when necessary.
• The first thing you should do after purchasing this watch is to specify a GMT
differential, which is the time differential between GMT and the location where
you normally will use the watch. For more information, see “To specify a GMT
differential” below.
• When using the watch outside the range of the Germany and England time signal
transmitters, you have to adjust the current time setting manually as required. See
“Timekeeping” for more information about manual time settings.
To specify a GMT differential
1.In the Timekeeping Mode, hold down B for about five
seconds until the second hand moves to the currently
selected GMT differential setting and stops. This is the
setting mode.
• The GMT differential value indicates the time
difference in hours from Greenwich Mean Time.
2.Use A to move the second hand to the GMT
differential setting you want to use.
GMT +0 (12 o’clock): London
GMT +1 (1 o’clock): Paris, Berlin, Milan, Rome,
Amsterdam, Hamburg, Frankfurt, Vienna,
Barcelona, Madrid
GMT +2 (2 o’clock): Athens
3.Press B to exit the setting mode.
• The watch also will return to the Timekeeping Mode if
you do not perform any operation for about two or three
minutes.
GMT
differential
value (+0)
GMT
differential
value (+1)
GMT
differential
value (+2)
• Normally, your watch should show the correct time as soon as you select a GMT
differential. If it does not, it should adjust automatically after the next auto receive
operation (in the middle of the night). You can also perform manual receive or you
can set the time manually.
• 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.
• The watch will receive the time calibration signal automatically from the applicable
transmitter (in the middle of the night) and update its settings accordingly. For
information about the relationship between GMT differential values and transmitters,
see “Transmitters”.
• See the maps under “Approximate Reception Ranges” for information about the
reception ranges of the watch.
Time Calibration Signal Reception
There are two different methods you can use to receive the time calibration signal:
auto receive and manual receive.
• Auto Receive
With auto receive, the watch receives the time calibration signal automatically up to six
times a day. When any auto receive is successful, the remaining auto receive
operations are not performed. For more information, see “About Auto Receive”.
• Manual Receive
Manual receive lets you start a time calibration receive operation with the press of a
button. For more information, see “To perform manual receive”.
Important!
• When getting ready to receive the time calibration signal, position the watch as
shown in the nearby illustration, with its 12 o’clock side facing towards a window.
Make sure there are no metal objects nearby.
12 o’clock
or
• Make sure the watch is facing the right way.
• Proper signal reception can be difficult or even impossible under the conditions listed
below.
Inside or
among
buildings
Inside a
vehicle
Near a
construction
site, airport, or
other sources
of electrical
noise
Near high-
tension
power lines
Among or
behind
mountains
Near
household
appliances,
office
equipment,
or a mobile
phone