Operation Guide 3725 3726

Transmitters

This watch is designed to receive the time calibration signal transmitted from Rugby, England and the signal from Mainflingen, Germany. You can select either one of the transmitters, or you can configure the watch to automatically select the transmitter that has the strongest signal.

The following explains how the watch determines which transmitter it should check first while the watch is configured for auto transmitter search (AvtA).

Module 3725

In this case:

The watch does this:

The first signal auto search operation

1. Checks the Mainflingen signal first.

after factory default settings are in effect,

2. If the Mainflingen signal cannot be

or after the city code has been changed

received, checks the Rugby signal.

Any case other than the above.

1. Checks the last successfully received

 

signal first.

 

2. If the last successfully received signal

 

cannot be received, checks the other

 

signal.

 

 

Module 3726

 

In this case:

The watch does this:

The first signal auto search operation

1. Checks the Rugby signal first.

after factory default settings are in effect,

2. If the Rugby signal cannot be received,

or after the city code has been changed

checks the Mainflingen signal.

Any case other than the above.

1. Checks the last successfully received

 

signal first.

 

2. If the last successfully received signal

 

cannot be received, checks the other

 

signal.

Since the watch checks signals from both transmitters when AvtA is selected as the transmitter setting, signal reception can take as long as 14 minutes.

3725

To find out the module number of your watch, look at its

 

back cover. The Module number (3725 or 3726) is

3726

engraved inside the box on the back cover.

 

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 day of the week is automatically displayed in accordance with the date (year, month, and day) settings.

The year can be set in the range of 2000 to 2099.

The watch’s 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 watch’s batteries replaced or when battery power drops to Level 4.

The current time for all city codes in the Timekeeping Mode and World Time Mode is calculated in accordance with the Greenwich Mean Time (GMT) differential for each city, based on your Home City time setting.

GMT differential is calculated by this watch based on Universal Time Coordinated

(UTC*) data.

*UTC is the 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. The reference point for UTC is Greenwich, England.

12-hour/24-hour Timekeeping Formats

The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is also applied in all other modes.

With the 12-hour format, the PM indicator ( ) appears on the bottom dial 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.

Illumination Precautions

Illumination may be hard to see when viewed under direct sunlight.

Illumination automatically turns off whenever an alarm sounds.

Frequent use of illumination runs down the batteries.

Auto light switch precautions

The auto light switch is turned off automatically whenever battery power is at Level 3.

Wearing the watch on the inside of your wrist, movement of your arm, or vibration of your arm can cause frequent activation of the auto light switch and illumination of the digital display areas. To avoid running down the batteries, turn off the auto light switch whenever engaging in activities that might cause frequent illumination.

Note that wearing the watch under your sleeve while the auto light switch is turned on can cause frequent illumination of the digital display areas and can run down the batteries.

More than 15 degrees

Illumination may not turn on if the face of the watch is

too high

more than 15 degrees above or below parallel. Make

 

sure that the back of your hand is parallel to the ground.

 

Illumination turns off after the preset illumination

 

duration (see “To set the current digital time and date

 

manually”), 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 illumination does not turn on, try moving the watch back to the starting position (parallel with the ground) and then tilt it back towards 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, illumination may not turn on until about one second after you turn the face of the watch towards you. This does not necessarily indicate malfunction of the auto light switch.

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.

City Code Table

City

City

GMT

 

Other major cities in same time zone

Code

Differential

 

 

 

 

 

– – –

 

 

–11.0

 

Pago Pago

HNL

Honolulu

–10.0

 

Papeete

ANC

Anchorage

–09.0

 

Nome

LAX

Los Angeles

–08.0

 

San Francisco, Las Vegas, Vancouver,

 

Seattle/Tacoma, Dawson City

 

 

 

 

 

DEN

Denver

–07.0

 

El Paso, Edmonton

CHI

Chicago

–06.0

 

Houston, Dallas/Fort Worth,

 

New Orleans, Mexico City, Winnipeg

 

 

 

 

 

NYC

New York

–05.0

 

Montreal, Detroit, Miami, Boston,

 

Panama City, Havana, Lima, Bogota

 

 

 

 

 

CCS

Caracas

–04.0

 

La Paz, Santiago, Port of Spain

RIO

Rio De Janeiro

–03.0

 

Sao Paulo, Buenos Aires, Brasilia, Montevideo

– – –

 

 

–02.0

 

 

– – –

 

 

–01.0

 

Praia

GMT

 

 

+00.0

 

Dublin, Lisbon, Casablanca, Dakar, Abidjan

LON

London

 

 

 

 

 

PAR

Paris

+01.0

 

Milan, Rome, Madrid, Amsterdam, Algiers, Hamburg,

BER

Berlin

 

Frankfurt, Vienna, Stockholm, Barcelona

 

 

ATH

Athens

 

 

Helsinki, Istanbul, Beirut, Damascus,

CAI

Cairo

+02.0

 

Cape Town

JRS

Jerusalem

 

 

 

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

 

 

 

 

 

SEL

Seoul

+09.0

 

Pyongyang

TYO

Tokyo

 

 

 

 

 

ADL

Adelaide

+09.5

 

Darwin

SYD

Sydney

+10.0

 

Melbourne, Guam, Rabaul

NOU

Noumea

+11.0

 

Port Vila

WLG

Wellington

+12.0

 

Christchurch, Nadi, Nauru Island

Based on data as of December 2003.

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