Operation Guide 3750
Alarm OperationBacklight Precautions
The alarm sounds at the preset time for about 20 seconds, regardless of the mode theThe backlight uses an EL (electro-luminescent) panel that causes the entire display to
watch is in. In the case of the snooze alarm, the alarm operation is performed a totalglow for easy reading in the dark. In any mode, press B to illuminate the display for
of seven times, every five minutes, or until you turn the alarm off.about two seconds.
" To stop the alarm tone after it starts to sound, press any button." The electro-luminescent panel that provides illumination loses power after very long
" Performing any one of the following operations during a 5-minute interval betweenuse.
snooze alarms cancels the current snooze alarm operation." The illumination provided by the backlight may be hard to see when viewed under
Displaying the Timekeeping Mode setting screendirect sunlight.
Displaying the SNZ setting screen" The watch may emit an audible sound whenever the display is illuminated. This is
due to vibration of the EL panel used for illumination, and does not indicate
To test the alarmmalfunction.
In the Alarm Mode, hold down D to sound the alarm." The backlight automatically turns off whenever an alarm sounds.
" Frequent use of the backlight shortens the battery life.
To turn an alarm on and off
1.In the Alarm Mode, use D to select an alarm.
On/Off status 2.Press A to toggle it on (ON displayed) and off
(OF displayed).City Code Table
" Turning on a one-time alarm (AL1through AL4)
CityGMT
displays the alarm on indicator on its Alarm ModeCodeCityDifferentialOther major cities in same time zone
screen.� � ��11.0Pago Pago
" Turning on the snooze alarm (SNZ) displays the alarmHNLHonolulu�10.0Papeete
on indicator and snooze alarm indicator on the AlarmANCAnchorage�09.0Nome
Alarm on indicator Mode snooze alarm screen.LAXLos Angeles�08.0San Francisco, Las Vegas, Vancouver, Seattle/Tacoma,Dawson City
" In all modes, the alarm on indicator is shown for any
Snooze alarm indicator alarm that is currently turned on.DENDenver�07.0El Paso, Edmonton
Houston, Dallas/Fort Worth, New Orleans,Mexico City, Winnipeg
" The alarm on indicator flashes while the alarm isCHIChicago�06.0
sounding.Montreal, Detroit, Miami, Boston, Panama City,
" The snooze alarm indicator flashes during the 5-minuteNYCNew York�05.0Havana, Lima, Bogota
intervals between alarms.CCSCaracas�04.0La Paz, Santiago, Port Of Spain
RIO Rio De Janeiro�03.0Sao Paulo, Buenos Aires, Brasilia, Montevideo
� � ��02.0
To turn the Hourly Time Signal on and off� � ��01.0Praia
1.In the Alarm Mode, use D to select the Hourly TimeGMT+00.0Dublin, Lisbon, Casablanca, Dakar, Abidjan
On/Off statusSignal (SIG).LONLondon
2.Press A to toggle it on (ON displayed) and offPARParis+01.0Milan, Rome, Madrid, Amsterdam, Algiers,
Hamburg, Frankfurt, Vienna, Stockholm, Berlin
(OF displayed).CAICairoAthens, Helsinki, Istanbul, Beirut, Damascus,
" The Hourly Time Signal on indicator is shown on the+02.0JRSJerusalemCape Town
display in all modes while the Hourly Time Signal isJEDJeddah+03.0Kuwait, Riyadh, Aden, Addis Ababa, Nairobi, Moscow
turned on.THRTehran+03.5Shiraz
DXBDubai+04.0Abu Dhabi, Muscat
KBLKabul+04.5
Hourly time signal KHIKarachi+05.0Male
on indicator DELDelhi+05.5Mumbai, Kolkata
DACDhaka+06.0Colombo
RGNYangon+06.5
BKKBangkok+07.0Jakarta, Phnom Penh, Hanoi, Vientiane
ReferenceHKGHong Kong+08.0Singapore, Kuala Lumpur, Beijing, Taipei, Manila,Perth, Ulaanbaatar
This section contains more detailed and technical information about watch operation.TYOTokyo+09.0Seoul, Pyongyang
It also contains important precautions and notes about the various features andADLAdelaide+09.5Darwin
SYDSydney+10.0Melbourne, Guam, Rabaul
functions of this watch.NOUNoumea+11.0Port Vila
WLGWellington+12.0Christchurch, Nadi, Nauru Island
Graphic Area*Based on data as of June 2004.
The following describes the information indicated by the graphic area in each mode.
Graphic area
ModeGraphic Area
TimekeepingTimekeeping Mode seconds
World TimeTimekeeping Mode seconds
Countdown TimerCountdown time minutes
StopwatchStopwatch time seconds
AlarmNo indication
Hand SettingNo indication
Auto Return Feature
If you leave a screen with flashing digits on the display for two or three minutes
without performing any operation, the watch automatically exits the setting screen.
Scrolling
The B and D buttons 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 through the data at high speed.
Initial Screens
When you enter the World Time or Alarm Mode, the data you were viewing when you
last exited the mode appears first.
Timekeeping
" Resetting the seconds to 00 while the current count is in the range of 30 to 59
causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are
reset to 00 without changing the minutes.
" With the 12-hour format, the P (PM) indicator appears on the display for times in the
range of noon to 11:59 p.m. and no indicator appears for times in the range of
midnight to 11:59 a.m.
" With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without
any indicator.
" The year can be set in the range of 2000 to 2039.
" The watchOs built-in full automatic calendar makes allowances for different month
lengths and leap years. Once you set the date, there should be no reason to change
it except after you have the watchOs batteries replaced.
World Time
" The World Time Mode times are calculated from the current Home City time setting
in the Timekeeping Mode, using the Greenwich Mean Time (GMT) differentials
associated with each city code.
" The GMT differential is a value that indicates the time difference between Greenwich
Mean Time and the time zone where a city is located.
" GMT differential is calculated by this watch based on Universal Time Coordinated
(UTC) data.
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ACEC
