Operation Guide 2548/2821
About the Auto Light Switch
Turning on the auto light switch causes the backlight to turn on for about one second, whenever you position your wrist as described below in any mode.
Moving the watch to a position that is parallel to the ground and then tilting it towards you more than 40 degrees causes the backlight to turn on.
Parallel to ground | More than 40 ° |
Warning!
•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 when running or engaged in any other activity that can result in accident or injury. Also take care that sudden illumination by the auto light switch does not surprise or distract others around you.
•When you are wearing the watch, make sure that its auto light switch is turned off before riding on a bicycle or operating a motorcycle or any other motor vehicle. Sudden and unintended operation of the auto light switch can create a distraction, which can result in a traffic accident and serious personal injury.
To turn the auto light switch on and off
In the Timekeeping Mode, hold down Lfor about one second to toggle the auto light switch on (
displayed) and off (
not displayed).
•With Module 2821, the auto light switch on indicator is 
.
•The auto light switch on indicator is on the display in all modes while the auto light switch is turned on.
•In order to protect against running down the battery, the auto light switch automatically turns off approximately six hours after you turn it on. Repeat the above procedure to turn the auto light switch back on if you want.
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.
Graphic Areas
The following describes the information indicated by the three graphic areas in each mode.
•In the Timekeeping Mode, World Time Mode, and Alarm Mode, the graphic areas indicate the passage of each minute and second of the current time (Timekeeping Mode time).
•In the
•In the Countdown Timer Mode, the graphic areas indicate the passage of each 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.
Minutes SecondsInput number Seconds 1/10 seconds
Timekeeping Mode | Stopwatch Mode |
Inputting Text
Cursor | The following describes how to input text in the | ||
MEMORY and Alarm Modes. | |||
| To input characters |
| |
| 1. When the cursor is on the display, use D and Bto | ||
| cycle through the available letters, numbers and | ||
| symbols, in the sequence shown below. | ||
| Press . | Press . | |
(space) | to | to | |
| |||
| to | to | |
| (symbol) | (number) | |
2.When the character you want is at the cursor position, press Cto move the cursor to the right.
3.Repeat steps 1 and 2 to input the rest of the characters you want.
•See the “Character List” for information about the characters you can input.
Auto Return Features
•If you leave the watch in the
•If you leave a screen with flashing digits or a cursor on the display for two or three minutes without performing any operation, the watch automatically exits the setting screen. Except for password input, any settings you have made up to that point are saved automatically.
Scrolling
The B and 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.
Initial Screens
When you enter the
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.
•The year can be set in the range of 2000 to 2039.
•The watch’s
World Time
•The current time in all World Time Mode cities is calculated in accordance with the 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 Timekeeping 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 (UTC) data.
Backlight Precautions
•The
•The illumination provided by the backlight may be hard to see when viewed under direct sunlight.
•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 malfunction.
•The backlight automatically turns off whenever an alarm sounds.
•Frequent use of the backlight shortens the battery life.
Auto light switch precautions
•Wearing the watch on the inside of your wrist and movement or vibration of your arm can cause the auto light switch to activate and illuminate the display. To avoid running down the battery, turn off the auto light switch whenever engaging in activities that might cause frequent illumination of the display.
• The backlight may not light if the face of the watch is
More than 15 degrees | more than 15 degrees above or below parallel. Make | |
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 | ||
| ||
| keep the watch pointed towards your face. | |
| • Static electricity or magnetic force can interfere with | |
| proper operation of the auto light switch. If the backlight | |
| does not light, try moving the watch back to the starting | |
| position (parallel with the ground) and then tilt it back | |
| toward you again. If this does not work, drop your arm | |
| all the way down so it hangs at your side, and then bring | |
| it back up again. |
•Under certain conditions, the backlight may not light until about one second after you turn the face of the watch towards you. This does not necessarily indicate malfunction of the backlight.
•You may notice a very faint clicking sound coming from the watch when it is shaken back and forth. This sound is caused by mechanical operation of the auto light switch, and does not indicate a problem with the watch.
Character List
City Code Table
City | City | GMT | Other major cities in same time zone | |
Code | Differential | |||
|
| |||
| Pago Pago | |||
HNL | Honolulu | Papeete | ||
ANC | Anchorage | Nome | ||
LAX | Los Angeles | San Francisco, Las Vegas, Vancouver, Seattle/Tacoma, | ||
Dawson City | ||||
|
|
| ||
DEN | Denver | El Paso, Edmonton | ||
CHI | Chicago | Houston, Dallas/Ft. Worth, New Orleans, | ||
Mexico City, Winnipeg | ||||
|
|
| ||
NYC | New York | Montreal, Detroit, Miami, Boston, Panama City, | ||
Havana, Lima, Bogota | ||||
|
|
| ||
CCS | Caracas | La Paz, Santiago, Pt. Of Spain | ||
RIO | Rio De Janeiro | Sao Paulo, Buenos Aires, Brasilia, Montevideo | ||
|
| |||
| Praia | |||
GMT |
| +00.0 | Dublin, Lisbon, Casablanca, Dakar, Abidjan | |
LON | London | |||
|
| |||
PAR | Paris | +01.0 | Milan, Rome, Madrid, Amsterdam, Algiers, | |
Hamburg, Frankfurt, Vienna, Stockholm, Berlin | ||||
|
|
| ||
CAI | Cairo | +02.0 | Athens, Helsinki, Istanbul, Beirut, Damascus, | |
JRS | Jerusalem | Cape Town | ||
| ||||
JED | Jeddah | +03.0 | Kuwait, Riyadh, Aden, Addis Ababa, Nairobi, Moscow | |
THR | Tehran | +03.5 | Shiraz | |
DXB | Dubai | +04.0 | Abu Dhabi, Muscat | |
KBL | Kabul | +04.5 |
| |
KHI | Karachi | +05.0 | Male | |
DEL | Delhi | +05.5 | Mumbai, Kolkata | |
DAC | Dhaka | +06.0 | Colombo | |
RGN | Yangon | +06.5 |
| |
BKK | Bangkok | +07.0 | Jakarta, Phnom Penh, Hanoi, Vientiane | |
HKG | Hong Kong | +08.0 | Singapore, Kuala Lumpur, Beijing, Taipei, Manila, | |
Perth, Ulaanbaatar | ||||
|
|
| ||
TYO | Tokyo | +09.0 | Seoul, Pyongyang | |
ADL | Adelaide | +09.5 | Darwin | |
SYD | Sydney | +10.0 | Melbourne, Guam, Rabaul | |
NOU | Noumea | +11.0 | Pt. Vila | |
WLG | Wellington | +12.0 | Christchurch, Nadi, Nauru Is. |
*Based on data as of June 2003.
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