
Operation Guide 3288
E-29
Specifications
Accuracy at normal temperature: ±30 seconds a month
Timekeeping: Hour, minutes, seconds, a.m./p.m. (P), day, day of the week
Time format: 12-hour and 24-hour
Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099
Other: Home City code (can be assigned one of 48 city codes); Daylight Saving
Time (summer time)/Standard Time
World Time: 48 cities (29 time zones)
Other: Daylight Saving Time/Standard Time
Stopwatch
Measuring unit: 1/100 second
Measuring capacity: 59'59.99"
Measuring modes: Elapsed time, split time, two finishes
Countdown Timer
Measuring unit: 1 second
Input range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
E-28
Initial Screens
When you enter the World Time or Alarm Mode, the data you were viewing when you
last exited the mode appears first.
World Time
The seconds count of the World Time is synchronized with the seconds count of thex
Timekeeping Mode.
All World Time Mode times are calculated from the current Home City time in thex
Timekeeping Mode using UTC time differential values.
The UTC differential is a value that indicates the time difference between ax
reference point in Greenwich, England and the time zone where a city is located.
The letters “UTC” is the abbreviation for “Coordinated Universal Time”, which is thex
world-wide scientific standard of timekeeping. It is based upon carefully maintained
atomic (cesium) clocks that keep time accurately to within microseconds. Leap
seconds are added or subtracted as necessary to keep UTC in sync with the Earth’s
rotation.
E-27
Holding downxCto turn the button operation tone on or off also causes the watch’s
current mode to change.
The MUTE indicator is displayed in all modes when the button operation tone isx
turned off.
Auto Return Features
If you leave the watch in the Alarm Mode for two or three minutes without performingx
any operation, it automatically changes to the Timekeeping Mode.
If you leave a screen with flashing digits or a cursor on the display for two or threex
minutes without performing any operation, the watch automatically saves any
settings you have made up to that point and exits the setting screen.
Scrolling
The Band Dbuttons are used in various modes and setting screens to scroll
through data on the display. In most cases, holding down these buttons during a scroll
operation scrolls at high speed.
E-26
Reference
This section contains more detailed and technical information about watch operation.
It also contains important precautions and notes about the various features and
functions of this watch.
Button Operation Tone
MUTE indicator The button operation tone sounds any time you press one
of the watch’s buttons. You can turn the button operation
tone on or off as desired.
Even if you turn off the button operation tone, the alarm,x
Hourly Time Signal, and Countdown Timer Mode alarm
all operate normally.
To turn the button operation tone on and off
In any mode (except when a setting screen is on the
display), hold down Cto toggle the button operation tone
on (MUTE indicator not displayed) and off (MUTE indicator
displayed).
E-25
To illuminate the display
In any mode, press Lto turn on illumination.
You can use the procedure below to select either 1.5 seconds or 3 seconds as thex
illumination duration. When you press L, the illumination will remain on for about
1.5 seconds or 3 seconds, depending on the current illumination duration setting.
To specify the illumination duration
In the Timekeeping Mode, hold down1. Auntil the
seconds start to flash, which indicates the setting
screen.
While the seconds are flashing, press2. Bto toggle the
illumination duration between 1.5 seconds ( ) and
3 seconds ( ).
Press3. Ato exit the setting screen.
E-24
Illumination
This watch has an EL (electro-luminescent) panel that
causes the entire display to glow for easy reading in the
dark.
Illumination Precautions
The electro-luminescent panel that provides illuminationx
loses power after very long use.
Illumination may be hard to see when viewed under directx
sunlight.
The watch may emit an audible sound whenever thex
display is illuminated. This is due to vibration of the
EL panel used for illumination, and does not indicate
malfunction.
Illumination automatically turns off whenever an alarmx
sounds.
Frequent use of illumination runs down the battery.x
E-23
To turn the Hourly Time Signal on and off
Hourly time signal
on indicator
On/Off status
In the Alarm Mode, use1. Dand Bto select the Hourly
Time Signal ( ).
Press2. Ato toggle it on ( displayed) and off
(displayed).
The Hourly Time Signal on indicator is shown on thex
display in all modes while the Hourly Time Signal is
turned on.
E-22
To turn an alarm on and off
Alarm on
indicator
Snooze alarm indicator
On/Off status
In the Alarm Mode, use1. Dand Bto select an alarm.
Press2. Ato toggle it on ( displayed) and off
(displayed).
Turning on a one-time alarm (xthrough )
displays the alarm on indicator on its Alarm Mode screen.
Turning on the snooze alarm (x) displays the alarm
on indicator and snooze alarm indicator on the Alarm
Mode snooze alarm screen.
In all modes, the alarm on indicator is shown for anyx
alarm that is currently turned on.
The alarm on indicator flashes while the alarm isx
sounding.
The snooze alarm indicator flashes during the 5-minutex
intervals between alarms.
E-21
Press3. Cto move the flashing between the hour and minute settings.
While a setting is flashing, use4. D(+) and B(–) to change it.
When setting the alarm time using the 12-hour format, take care to set the timex
correctly as a.m. (indicator not displayed) or p.m. (Pindicator).
Press5. Ato exit the setting screen.
Alarm Operation
The alarm sounds at the preset time for about 10 seconds, regardless of the mode the
watch is in. In the case of the snooze alarm, the alarm operation is performed a total
of seven times, every five minutes, or until you turn the alarm off (page E-22).
To stop the alarm tone after it starts to sound, press any button.x
Performing any one of the following operations during a 5-minute interval betweenx
snooze alarms cancels the current snooze alarm operation.
Displaying the Timekeeping Mode setting screen (page E-9)
Displaying the snooze alarm setting screen (page E-20)
To test the alarm
In the Alarm Mode, hold down Dto sound the alarm.
E-20
To set an alarm time
In the Alarm Mode, use1. Dand Bto scroll through the
alarm screens until the one whose time you want to set
is displayed.
BD
BB
BB
DB
DD
DD
To set a one-time alarm, display one of the screens indicated by an alarm numberx
from through . To set the snooze alarm, display the screen
indicated by .
The snooze alarm repeats every five minutes.x
After you select an alarm, hold down2. Auntil the hour setting of the alarm time
starts to flash, which indicates the setting screen.
This operation turns on the alarm automatically.x