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2. OPERATION CHART: MODULE QW-2812
Getting Acquainted
Congratulations upon your selection of this CASIO watch. To get the most out of your
purchase, be sure to carefully read this manual and keep it on hand for later reference
when necessary.
Expose the watch to bright light to charge its battery before using it.
You can use this watch even as its battery is being charged by exposure to bright
light.
• Be sure to read “Battery” of this manual for important information you need to
know when exposing the watch to bright light.
If the display of the watch is blank...
If the Power Saving indicator (PS) is on the display (either
flashing or steady), it means that the display is blank
because the watch’s Power Saving function has turned it
off to conserve power. Power Saving automatically turns
off the display and enters a sleep state whenever your
watch is left for a certain period in an area where it is
dark.
• The initial factory default setting is Power Saving on.
• The watch will recover from the sleep state if you move it
to a well-lit area or if you press any button.
• See “Power Saving Function” for more information.
Power saving indicator
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.
General Guide
• Press C to change from mode to mode.
• In any mode, press B to illuminate the display.
Alarm Mode
Data Memory ModeStopwatch Mode
Timekeeping Mode
Press C.
World Time Mode
▲
▲
▲
▲
▲
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 is designed to pick up the time calibration
signal transmitted from Mainflingen, Germany.
DST indicator
Hour : Minutes
Seconds
PM indicator
Day of week
Month – Day
Current Time Setting
This watch automatically adjusts its time setting 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 set your Home City,
which is the city where you will normally use the watch. For more information, see
“To set your Home City” below.
• When using the watch in an area that is outside of the range of the transmitter in
Mainflingen, you need to manually adjust the time as required. See “Timekeeping”
for information about manual settings.
To set your Home City
1. In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2. Use D (east) and B (west) to select the city code you
want to use as your Home City.
• The following are the city codes for major cities in the
Western Europe time zones.
LON
: London
PAR
and
BER
: Paris, Berlin, Milan, Rome,
Amsterdam, Hamburg, Frankfurt,
Vienna
3. Press A twice to exit the setting screen.
• The first press of A displays the 12/24-hour setting screen. Pressing A again exits
the setting screen.
• Normally, your watch should show the correct time as soon as you select your Home
City code. If it does not, it should adjust automatically after the next auto receive (in
the middle of the night). You can also perform manual receive or you can set the time
manually.
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City code
• If you are in an area that does not use Daylight Saving Time (summer time), turn off
the DST setting.
To display the last signal screen
In the Timekeeping Mode, press D to display the last signal screen (indicated by
GET
). The last signal screen shows the date and time of the last successful time
calibration signal reception.
Press D.
PM indicator
DST indicator Hour : Minutes
Seconds
Day of week Month – Day
Received time
(Hour : Minutes)
Received date (Month – Day)
Last Signal Screen
▲
▲
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 automatically picks up the time calibration signal five
times a day at 0:00 a.m., 1:00 a.m., 2:00 a.m., 3:00 a.m., and 4:00 a.m. For more
information, see “About Auto Receive”.
• Manual Receive
Manual receive lets you start time calibration signal reception 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.
• The watch should not be on its side or facing the wrong way.
Resin Band
Metal Band
Inside or
among
buildings
Inside a
vehicle
Near
household
appliances,
office
equipment,
or a mobile
phone
Near a
construction
site, airport, or
other sources
of electrical
noise
Near high-
tension
power lines
Among or
behind
mountains
• Proper signal reception can be difficult or even impossible under the conditions listed
below.
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