
Operation Guide 5478
E-49
To change the illumination duration
1. In the Timekeeping Mode, hold down Auntil the flashing SET Hold indicator
disappears from the display and the currently selected city code flashes on the
display.
2. Press Cten times to display the illumination duration setting screen.
xThe current illumination duration setting (1 or 3) will be flashing in the display.
xSee the sequence in step 2 of the procedure under “To configure the digital time
and date settings” (page E-21) for information about how to scroll through setting
screens.
3. Press Dto toggle the illumination duration between three seconds (3displayed)
and 1.5seconds (1displayed).
4. After all the settings are the way you want, press Ato exit the setting screen.
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Illumination
The display of the watch is illuminated for easy reading in the dark.
To turn on illumination
Press Bin any mode to illuminate the display.
xYou can use the procedure below to select either 1.5 seconds or three seconds as
the illumination duration.
E-47
To turn an alarm and the Hourly Time Signal on and off
In the Alarm Mode, press Dto select an alarm or the
Hourly Time Signal.
xWhen the alarm you want or the Hourly Time Signal
is displayed, press Eto toggle it between on
(ON displayed) and off (OFF displayed).
xThe alarm on indicator (when any alarm is on), snooze
alarm indicator (when the snooze alarm is on), and the
Hourly Time Signal on indicator (when the Hourly Time
Signal is on) are shown on the display in all modes.
xSNZ and ALM will be displayed while the snooze
alarm is turned on.
To stop the alarm
Press any button.
Hourly time signal
on indicator
Snooze alarm on indicator
Alarm on indicator
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3. Press Cto move the flashing between the hour and the minute digits.
xThe selected digits are those that are flashing.
4. Use D(+) and B(–) to change the hour and minute settings.
xHolding down either button scrolls at high speed.
xWhen setting the alarm time using the 12-hour format, take care to set the time
correctly as a.m. (no indicator) or p.m. (PM indicator).
5. Press Ato exit the setting mode.
To test the alarm
In the Alarm Mode, hold down Dto sound the alarm.
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xIf you do not perform any operation for about two or three minutes in the Alarm
Mode, the watch will automatically return to the Timekeeping Mode.
To set an alarm time
1. In the Alarm Mode, use Dto display the alarm whose
settings you want to change.
AL1 AL3AL2
SNZSIG AL4
2. Hold down Auntil the flashing SET Hold indicator
disappears from the display and the alarm time hour
digits start to flash. Release Aafter the digits start
to flash.
xALM appears on the display, indicating that alarm
setting is enabled.
Alarm indicator
E-44
Using the Alarm
You can set five independent daily alarms. When a daily
alarm is turned on, an alarm tone will sound for about
10seconds each day when the time in the Timekeeping
Mode reaches the preset alarm time. One of the alarms
is a snooze alarm that repeats every five minutes, up to
seven times.
You can also turn on an Hourly Time Signal, which will
cause the watch to beep twice every hour on the hour.
To enter the Alarm Mode
Use Cto select the Alarm Mode as shown on page E-13.
xThe snooze alarm screen is indicated by SNZ, while the
other alarm screens are numbered AL1 through AL4.
The Hourly Time Signal screen is indicated by SIG.
xWhen you enter the Alarm Mode, the data you were
viewing when you last exited the mode appears first.
Alarm ON/OFF indicator
Alarm number
Alarm time (Hour : Minute)
E-43
To swap your Home City and World Time City
In the World Time Mode, hold down Efor at least three seconds.
This will cause SWAP Hold to flash on the display, and then your Home City and
World Time City will be swapped.
Example: To swap the Home City (TYO) and World Time City (NYC)
E, at least
3 seconds
World Time City (NYC) time
TYO (Tokyo) time
New World Time City (TYO)
NYC (New York) time
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To specify standard time or daylight saving time (DST) for a city
1. In the World Time Mode, press Dto display the city
code (time zone) whose Standard Time/Daylight Saving
Time setting you want to change.
2. Hold down Afor about two seconds.
xThis toggles the city code you selected in step1
between Daylight Saving Time (DST indicator
displayed) and standard time (DST indicator not
displayed).
xNote that you cannot switch between standard time/
daylight saving time (DST) while UTC is selected as
the World Time City.
xThe standard time/daylight saving time (DST) setting
affects only the currently displayed city. Other cities
are not affected.
DST indicator
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To enter the World Time Mode
Use Cto select the World Time Mode as shown on page E-13.
To view the time in another time zone
In the World Time Mode, press Dto change the city code setting.
xHolding down Dscrolls at high speed.
xTo display the UTC city code (differential 0), press Band Dat the same time.
E-40
Checking the Current Time in a Different Time Zone
You can use the World Time Mode to view the current
time in one of 31 time zones (48 cities) around the
globe. The city that is currently selected in the World
Time Mode is called the “World Time City”.
xThe hour and minute hands indicate information for
the currently selected Home City.
xWhen you enter the World Time Mode, the currently
selected city code and city name (English) scroll once
across the digital display. After that, the city code
remains displayed.
xYou can view the name (English) of your Home City
by pressing A.
World Time City hour and
minute
City code of World Time City
Second
Indicates WT.