Operation Guide 4723
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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.
Starting second hand movement and digital display
To conserve battery power, the watch is shipped from the
factory with its functions disabled. Pressing any one of the
watch’s three buttons will activate its functions, which will
cause the second hand to start moving and the digital
display to activate.
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Your watch switches automatically between Standard Time and Daylight
Saving Time (summer time).
Note, however, that switching cannot be performed correctly if the watch is
not able to receive the time calibration signal.
If you notice that the current time is not displayed properly, use the
procedure under “To perform manual receive” or “To set the time and date
manually” to correct it.
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.
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Hour hand
Minute hand
Date
Second hand
(Timekeeping/
Stopwatch)
24-Hour hand
Stopwatch
minute hand
Stopwatch 1/20 second hand
▲
▲
Hand Setting Mode
Alarm Mode
Dual Time Mode
General Guide
•
Press
C
to change from mode to mode.
•
About 1.5 seconds after you enter the Dual Time Mode, Alarm Mode, or Hand Setting Mode
the hands will move the position that indicates the current setting of the mode. You cannot
change to another mode while the hands are moving. To change to another mode, either
press
C
before the hands start to move, or wait until the hands stop before pressing
C
.
•
In Timekeeping mode (except when a setting screen is on the display), press
B
to
illuminate the face of the watch.
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Timekeeping Mode
Press
C
.
Stopwatch Mode
▲
▲
▲
Radio-controlled Atomic 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.
•
Supported time calibration signals: Germany (Mainflingen), England (Rugby).
Current Time Setting
This watch adjusts its time setting automatically in accordance with a time calibration
signal. You can also perform a manual procedure to set the time and date, when
necessary.
•
The first thing you should do after purchasing this watch is to specify your Home
Time Zone, which is the time zone where you will normally use the watch. For more
information, see “To specify your Home Time Zone” below.
•
When using the watch outside the range of the time signal transmitter, you have to
adjust the current time setting manually as required. See “Timekeeping” for more
information about manual time settings.
To specify your Home Time Zone
1. In the Timekeeping Mode, hold down
A
until the GMT
differential value starts to flash, which indicates the
setting screen.
•
The second hand will move at high speed to the 12
o’clock position, where it will stop.
•
The GMT differential value indicates the time
difference in hours between Greenwich Mean Time
and the currently selected time zone.
•
The
DST
indicator indicates that Daylight Saving Time
(summer time) is turned on for the currently selected
time zone.
2. Use
B
(+) to select the time zone you want to use as
your Home Time Zone.
•
The following are the GMT differential values for major
cities in the Western Europe time zones.
l l l l l
ll
ll
ll
ll
ll
ll
l l
l l
DST indicator
GMT differential
value
3. Press
A
to exit the setting screen.
•
The second hand will advance at high speed to the correct position and resume
normal movement from there.
•
Normally, your watch should show the correct time as soon as you specify your
Home Time Zone. 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.
Time Zone
+0.0 (DST +1.0)
+1.0 (DST +2.0)
+2.0 (DST +3.0)
Other major cities in same time zone
London, Dublin, Lisbon, Casablanca,
Dakar, Abidjan
Paris, Milan, Rome, Madrid,
Amsterdam, Algiers, Hamburg,
Frankfurt, Vienna, Stockholm, Berlin
Athens, Cairo, Jerusalem, Helsinki,
Istanbul, Beirut, Damascus,
Cape Town
•
Selecting
+0.0
,
+1.0
, or
+2.0
(+1.0, +2.0, or +3.0 while DST is turned on) as your
Home Time Zone automatically turns on auto receive. When auto receive is turned
on and you are within the reception range, the watch will automatically receive the
time calibration signal from the applicable transmitter (in the middle of the night) and
update its settings accordingly. For information about the relationship between time
zones (GMT differential values) and transmitters, see “Transmitters”.
•
See the maps under “Reception Ranges” for information about the reception ranges
of the watch.
•
If you are in an area that does not use Daylight Saving Time (summer time), turn off
the DST setting.
•
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.
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
•
Signal reception is normally better at night than during the day.
•
Time calibration signal reception takes from two to seven minutes, but in some
cases it can take as long as 14 minutes. Take care that you do not perform any
button operations or move the watch during this time.
•
When within range of the applicable transmitter, this watch can receive either the
Germany (Mainflingen) or England (Rugby) time calibration signals.
See “Transmitters” for more information.
Reception Ranges
Rugby
Mainflingen
1,500 kilometers
500 kilometers
