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Operation Guide 3311 5052
3
World Time
The World Time Mode digitally displays the current time in
30 cities (29 time zones) around the world.
• Pressing A in the World Time Mode causes the
applicable city code to appear on the digital display for
about two seconds.
• If the current time shown for a city is wrong, check your
Home City time settings and make the necessary
changes.
• The watch will perform a signal reception even if it is in
the World Time Mode when a calibration time is
reached. If this happens, the World Time Mode time
settings will be adjusted in accordance with the
Timekeeping Mode’s Home City time.
• All of the operations in this section are performed in the
World Time Mode, which you enter by pressing C.
City Code
Current time in the
selected city code
To view the time in another city
While in the World Time Mode, press D to scroll through the city codes (time zones).
• For full information on city codes, see the “City Code Table”.
To toggle a city code time between Standard Time and Daylight Saving Time
1.In the World Time Mode, use D to display the city code
(time zone) whose Standard Time/Daylight Saving Time
setting you want to change.
• Pressing A in the World Time Mode causes the
applicable city code to appear on the digital display for
about two seconds.
2.Hold down A to toggle Daylight Saving Time (DST
indicator displayed) and Standard Time (DST indicator
not displayed).
• Note that you cannot use the World Time Mode to
change the DST setting of the Home City code you
currently have selected in the Timekeeping Mode. See
“To change the Daylight Saving Time (summer time)
setting” for information about turning the Home City
code DST setting on and off.
DST indicator
• The DST indicator will appear on the display whenever you display a city code for
which Daylight Saving Time is turned on.
• Note that you cannot switch between Standard Time and Daylight Saving Time while
GMT is selected as the city code.
• Note that the DST/Standard Time setting affects only the currently displayed city
code. Other city codes are not affected.
Alarms
You can set three independent Daily Alarms. When an
alarm is turned on, the alarm tone sounds when the alarm
time is reached. You can also turn on an Hourly Time
Signal that causes the watch to beep twice every hour on
the hour.
• The alarm and Hourly Time Signal operate in
accordance with the current digital time.
• The alarm number (AL1 though AL3) indicates an alarm
screen. SIG appears in place of the alarm number when
the Hourly Time Signal screen is shown.
• All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing C.
Alarm
number
Alarm time
(Hour : Minutes)
Mode
indicator
On/Off status
Alternate at
two-second
interval
To set an alarm time
1.In the Alarm Mode, press D to select the alarm whose
time you want to set.
AL1 AL2 AL3 SIG
2.Hold down A until the hour setting of the alarm time
starts to flash, which indicates the setting screen.
• This automatically turns on the alarm.
3. Press C to move the flashing between the hour and minute settings.
4. While a setting is flashing, use D (+) and B (–) to change it.
• When setting the alarm time using the 12-hour format, take care to set the time
correctly as a.m. (no indicator) or p.m. (P indicator).
• If you have 24-hour timekeeping selected in the Timekeeping Mode, the alarm
time is also displayed in 24-hour format.
5. Press A to exit the setting screen.
Alarm Operation
The alarm sounds in all modes at the preset time for about 10 seconds, or until you
stop it by pressing any button.
To test the alarm
In the Alarm Mode, hold down D to sound the alarm.
To turn an alarm and the Hourly Time Signal on and off
1. In the Alarm Mode, press D to select an alarm or the Hourly Time Signal.
2. When the alarm or the Hourly Time Signal you want to set is selected, press A to
turn it on and off.
Stopwatch
The stopwatch lets you measure elapsed time, split times,
and two finishes.
• The display range of the stopwatch is 99 minutes, 59.99
seconds.
• The 1/100-second value appears while the elapsed time
operation is stopped or while a split time is frozen on the
display.
SecondsMinutes
Seconds
1/100
second
More than
one minute
Elapsed time
(Minutes : Seconds) 1/100 second
Elapsed Time Screen
• The stopwatch continues to run, restarting from zero after it reaches its limit, until
you stop it.
• Exiting the Stopwatch Mode while a split time is frozen on the display clears the split
time and returns to elapsed time measurement.
• The stopwatch measurement operation continues even if you exit the Stopwatch
Mode.
• All of the operations in this section are performed in the Stopwatch Mode, which you
enter by pressing C.
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Split indicator
Split time
(Minutes : Seconds) 1/100 second
Split Time Screen
To measure times with the stopwatch
D
Start Stop
Elapsed Time
➤
Re-start Clear
D
➤
Stop
D
➤
D ➤
A
Split Time
D
Start Split
➤
Split release Clear
A
➤
Stop
A
➤
D
➤
A
Two Finishes
D
Start Split
➤
Stop
Clear
A
➤
Split release
D
➤
A
➤
A
First runner
finishes.
Display time of
first runner.
Second runner
finishes.
Display time of
second runner.
Illumination
An LED (light-emitting diode) and a light guide panel
illuminate the digital display for easy reading in the dark.
• See “Illumination Precautions” for other important
information.
To illuminate the display
In any mode, press B to illuminate the display.
• You can specify 1.5 seconds or 2.5 seconds as the
illumination duration. See “To set the current digital time
and date manually” for more information.
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Power Supply
This watch is equipped with a solar cell and a special rechargeable battery (secondary
battery) that is charged by the electrical power produced by the solar cell. The
illustration shown below shows how you should position the watch for charging.
Example: Orient the watch so its face
is pointing at a light source.
• The illustration shows how to position
a watch with a resin band.
• Note that charging efficiency drops
when any part of the solar cell is
blocked by clothing, etc.
• You should try to keep the watch
outside of your sleeve as much as
possible. Charging is reduced
significantly if the face is only partially
covered.
Solar cell
Important!
• Storing the watch for long periods in an area where there is no light or wearing it in
such a way that it is blocked from exposure to light can cause rechargeable battery
power to run down. Make sure that the watch is exposed to bright light whenever
possible.
• This watch uses a special rechargeable battery to store power produced by the solar
cell, so regular battery replacement is not required. However, after very long use, the
rechargeable battery may lose its ability to achieve a full charge. If you experience
problems getting the special rechargeable battery to charge fully, contact your dealer
or CASIO distributor about having it replaced.
• Never try to remove or replace the watch’s special battery yourself. Use of the wrong
type of battery can damage the watch.
• The current time and all other settings return to their initial factory defaults whenever
battery power drops to Level 4 and when you have the battery replaced.
• Turn on the watch’s Power Saving function and keep it in an area normally exposed
to bright light when storing it for long periods. This helps to keep the rechargeable
battery from going dead.