Operation Guide 2548/2821
About the Auto Light Switch" The watchOs built-in full automatic calendar makes allowances for different month
Turning on the auto light switch causes the backlight to turn on for about one second,lengths and leap years. Once you set the date, there should be no reason to change
whenever you position your wrist as described below in any mode.it except after you have the watchOs battery replaced.
World Time
Moving the watch to a position that is parallel to the ground and then tilting it
" The current time in all World Time Mode cities is calculated in accordance with the
towards you more than 40 degrees causes the backlight to turn on.Greenwich Mean Time (GMT) differential for each city, based on the current Home
City time setting in the Timekeeping Mode.
" The seconds count of the World Time is synchronized with the seconds count of the
More than 40°Parallel to groundTimekeeping Mode.
" The GMT differential is the time difference of the time zone where the city is located
from Greenwich Mean Time.
" GMT differential is calculated by this watch based on Universal Time Coordinated
Warning!(UTC) data.
" Always make sure you are in a safe place whenever you are reading the
display of the watch using the auto light switch. Be especially careful whenBacklight Precautions
running or engaged in any other activity that can result in accident or injury." The electro-luminescent panel that provides illumination loses power after very long
Also take care that sudden illumination by the auto light switch does notuse.
surprise or distract others around you.
" The illumination provided by the backlight may be hard to see when viewed under
" When you are wearing the watch, make sure that its auto light switch is turneddirect sunlight.
off before riding on a bicycle or operating a motorcycle or any other motor" The watch may emit an audible sound whenever the display is illuminated. This is
vehicle. Sudden and unintended operation of the auto light switch can create
due to vibration of the EL panel used for illumination, and does not indicate
a distraction, which can result in a traffic accident and serious personal injury.malfunction.
" The backlight automatically turns off whenever an alarm sounds.
To turn the auto light switch on and off
" Frequent use of the backlight shortens the battery life.
In the Timekeeping Mode, hold down L for about one second to toggle the auto light
switch on ( displayed) and off ( not displayed).Auto light switch precautions
" With Module 2821, the auto light switch on indicator is ." Wearing the watch on the inside of your wrist and movement or vibration of your arm
" The auto light switch on indicator is on the display in all modes while the auto lightcan cause the auto light switch to activate and illuminate the display. To avoid
switch is turned on.running down the battery, turn off the auto light switch whenever engaging in
" In order to protect against running down the battery, the auto light switchactivities that might cause frequent illumination of the display.
automatically turns off approximately six hours after you turn it on. Repeat the above" The backlight may not light if the face of the watch is
procedure to turn the auto light switch back on if you want.more than 15 degrees above or below parallel. Make
More than 15 degrees
sure that the back of your hand is parallel to the ground.too high
" The backlight turns off in about one second, even if you
Referencekeep the watch pointed towards your face.
This section contains more detailed and technical information about watch operation." Static electricity or magnetic force can interfere with
It also contains important precautions and notes about the various features andproper operation of the auto light switch. If the backlight
functions of this watch.does not light, try moving the watch back to the starting
position (parallel with the ground) and then tilt it back
Graphic Areastoward you again. If this does not work, drop your arm
The following describes the information indicated by the three graphic areas in eachall the way down so it hangs at your side, and then bring
mode.it back up again.
" In the Timekeeping Mode, World Time Mode, and Alarm Mode, the graphic areas" Under certain conditions, the backlight may not light until about one second after
indicate the passage of each minute and second of the current time (Timekeepingyou turn the face of the watch towards you. This does not necessarily indicate
Mode time).malfunction of the backlight.
" In the e-DATA MEMORY Mode, the graphic areas indicate the number at the" You may notice a very faint clicking sound coming from the watch when it is shaken
flashing digit during password input.back and forth. This sound is caused by mechanical operation of the auto light
" In the Countdown Timer Mode, the graphic areas indicate the passage of eachswitch, and does not indicate a problem with the watch.
minute and second of the countdown.
" In the Stopwatch Mode, the graphic areas indicate the passage of each second and
1/10 second of the elapsed time.Character List
MinutesSecondsInput numberSeconds 1/10 seconds
Timekeeping Modee-DATA MEMORY ModeStopwatch Mode
Inputting Text
The following describes how to input text in the e-DATA
Cursor MEMORY and Alarm Modes.
To input characters
1.When the cursor is on the display, use D and B to
cycle through the available letters, numbers and
symbols, in the sequence shown below.
City Code Table
Press .Press .
to to CityCityGMTOther major cities in same time zone
(space)CodeDifferential
(lower-case)(upper-case)
�11�11.0Pago Pago
HNLHonolulu�10.0Papeete
totoANCAnchorage�09.0Nome
(symbol)(number)LAXLos Angeles�08.0San Francisco, Las Vegas, Vancouver, Seattle/Tacoma,Dawson City
DENDenver�07.0El Paso, Edmonton
2. When the character you want is at the cursor position, press C to move the cursorHouston, Dallas/Ft. Worth, New Orleans,
to the right.CHIChicago�06.0Mexico City, Winnipeg
3. Repeat steps 1 and 2 to input the rest of the characters you want.Montreal, Detroit, Miami, Boston, Panama City,
NYCNew York�05.0
" See the OCharacter List� for information about the characters you can input.Havana, Lima, Bogota
CCSCaracas�04.0La Paz, Santiago, Pt. Of Spain
RIO Rio De Janeiro�03.0Sao Paulo, Buenos Aires, Brasilia, Montevideo
Auto Return Features�2�02.0
" If you leave the watch in the e-DATA MEMORY or Alarm Mode for two or three�1�01.0Praia
minutes without performing any operation, it automatically changes to theGMT+00.0Dublin, Lisbon, Casablanca, Dakar, Abidjan
Timekeeping Mode.LONLondon
" If you leave a screen with flashing digits or a cursor on the display for two or threePARParis+01.0Milan, Rome, Madrid, Amsterdam, Algiers,Hamburg, Frankfurt, Vienna, Stockholm, Berlin
minutes without performing any operation, the watch automatically exits the settingCAICairoAthens, Helsinki, Istanbul, Beirut, Damascus,
screen. Except for password input, any settings you have made up to that point areJRSJerusalem+02.0Cape Town
saved automatically.JEDJeddah+03.0Kuwait, Riyadh, Aden, Addis Ababa, Nairobi, Moscow
THRTehran+03.5Shiraz
ScrollingDXBDubai+04.0Abu Dhabi, MuscatKBLKabul+04.5
The B and D buttons are used in various modes and setting screens to scrollKHIKarachi+05.0Male
through data on the display. In most cases, holding down these buttons during a scrollDELDelhi+05.5Mumbai, Kolkata
operation scrolls at high speed.DACDhaka+06.0Colombo
RGNYangon+06.5
BKKBangkok+07.0Jakarta, Phnom Penh, Hanoi, Vientiane
Initial ScreensSingapore, Kuala Lumpur, Beijing, Taipei, Manila,
When you enter the e-DATA MEMORY, World Time, or Alarm Mode, the data you wereHKGHong Kong+08.0Perth, Ulaanbaatar
viewing when you last exited the mode appears first.TYOTokyo+09.0Seoul, Pyongyang
ADLAdelaide+09.5Darwin
TimekeepingSYDSydney+10.0Melbourne, Guam, Rabaul
NOUNoumea+11.0Pt. Vila
" Resetting the seconds to 00 while the current count is in the range of 30 to 59WLGWellington+12.0Christchurch, Nadi, Nauru Is.
causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are*Based on data as of June 2003.
reset to 00 without changing the minutes.
" The year can be set in the range of 2000 to 2039.
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ACEC
