Filter
Top Products
Operation Guide 4383
1
MO0512-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.
• This watch does not have a time zone that corresponds to the Greenwich
Mean Time differential of -3.5 hours. Because of this, the radio-controlled
timekeeping will not display the correct time for Newfoundland, Canada.
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.
• 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.
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
LEVEL 3
Charge
Solar cell
(Converts light to
electrical power.)
Rechargeable battery
LEVEL 1
LEVEL 2
LEVEL 3
All
functions
disabled.
All functions disabled,
except for analog timekeeping.
Dis-
charge
Battery charges in the light. Battery discharges in the dark.
• 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.
30
Hour hand
Minute hand
Date
Second hand
• See “Power Saving” for more information.
• The hands also stop whenever the battery level reaches Level 3.
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.
30
30
30
Home Position
Adjustment Mode
General Guide
• Press B to change from mode to mode.
Press B.
▲
Timekeeping Mode Receive Result 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.
• This watch is designed to pick up the time calibration signal transmitted in the United
States (Fort Collins, Colorado).
• The U.S. time calibration signal can be picked up by the watch while in North
America*.
* The term “North America” in this manual refers to the area that consists of
Canada, the continental United States, and Mexico.
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 U.S. 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 for about five
seconds until the second hand moves to the currently
selected GMT differential value and stops. This is the
setting mode.
• The GMT differential value indicates the time
difference in hours between Greenwich Mean Time
and the currently selected time zone.
2.Press B to select the time zone you want to use as
your Home Time Zone.
GMT –05 (5 o’clock): Miami, Toronto, New York,
Montreal, Detroit, Boston, Panama City,
Havana, Lima, Bogota
GMT –06 (6 o’clock): Mexico City, Winnipeg, Chicago,
Houston, Dallas/Fort Worth, New Orleans
GMT –07 (7 o’clock): Edmonton, Denver, El Paso,
Culiacan
GMT –08 (8 o’clock): Vancouver, Los Angeles, San
Francisco, Las Vegas, Seattle/Tacoma,
Dawson City, Tijuana
• Note that this watch does not have a city code that corresponds to Newfoundland.
30
GMT differential
value (–05)
GMT differential
value (–06)
GMT
differential
value
(–08)
GMT differential
value (–07)
3. Press A eight times to exit the setting mode.
• The watch will also return to the Timekeeping Mode if you do not perform any
operation for about two or three minutes.
• 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.
• 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 9 o’clock side facing towards a window.
Make sure there are no metal objects nearby.
9 o’clock
or
• The watch should not be facing the wrong way.