MO0610-EA

Operation Guide COMBIWAVE1

About This Manual

The operational procedures for Modules 2735, 3747, and 4772 are identical. All of the illustrations in this manual show Module 2735.

Button operations are indicated using the letters shown in the illustration.

This watch does not have a time zone that corresponds to the Greenwich Mean Time differential of –3.5 hours. Because of this, the radio-controlled timekeeping and World Time functions will not display the correct time for Newfoundland, Canada.

Module 2735

Module 3747

Module 4772

Each section of this manual provides you with the information you need to perform operations in each mode. Further details and technical information can be found in the “Reference” section.

General Guide

Press Cto change from mode to mode.

In any mode, press B to illuminate the display.

 

World Time Mode

Timekeeping Mode

Press C.

 

 

Hand Setting Mode

Radio-controlled Atomic Timekeeping

Hour hand

This watch receives a time calibration signal and updates

 

 

 

 

 

Minutes hand

its time setting accordingly. The time calibration signal

 

 

 

 

 

 

 

 

includes both Standard Time and Daylight Saving Time

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(summer time) data.

 

 

 

 

 

 

 

 

This watch is designed to pick up the time calibration

 

 

 

 

 

 

 

 

signal transmitted from Fort Collins, Colorado (USA).

 

 

 

 

 

 

 

 

Reception is possible within North America*.

 

 

 

 

 

 

 

 

* The term “North America” in this User’s Guide refers to the

 

 

 

 

 

 

 

 

area that consists of Canada, the continental United States,

 

 

 

 

 

 

 

 

 

Day

 

of week

and Mexico.

 

 

Current Time Setting

Month – Day

This watch automatically adjusts its digital time setting in

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

accordance with a time calibration signal. You can also

 

 

 

 

 

 

 

 

perform a manual procedure to set the time and date,

 

 

 

 

 

 

 

 

when necessary.

The first thing you should do after purchasing this watch is to set your Home City, which is the city where you will normally use the watch. For more information, see “To set your Home City” below.

When using the watch outside of the range of the transmitter in Fort Collins, you need to manually adjust the time as required. See “Timekeeping” for information about manual settings.

The analog time of this watch is synchronized with the digital time. Because of this, the analog time setting is automatically adjusted whenever you change the digital setting. See “Analog Timekeeping” for more information.

Alarm Mode

Date Alert Mode

Stopwatch Mode

Time Recorder Mode

Important!

Position the watch as shown in the nearby illustration, with its 12 o’clock side facing towards a window. Make sure there are no metal objects nearby.

Resin Band Metal Band

The watch should not be on its side or facing the wrong way.

Proper signal reception can be difficult or even impossible under the conditions listed below.

Inside or

Inside a

Near

Near a

Near high-

Among or

among

vehicle

household

construction

tension

behind

To set your Home City

Transmitter indicator

City code

1.In the Timekeeping Mode, hold down Auntil the transmitter indicator (USA) starts to flash, which indicates the setting screen.

2.Press Cto display the city code setting screen.

3.Use D(east) and B(west) to select the city code you want to use as your Home City.

The following are the city codes for major cities in North America.

LAX: Los Angeles, San Francisco, Las Vegas, Seattle, Vancouver, Tijuana

DEN: Denver, El Paso, Edmonton, Culiacan

CHI: Chicago, Houston, Dallas/Fort Worth, New Orleans, Winnipeg, Mexico City

NYC: New York, Detroit, Miami, Boston, Montreal

Note that this watch does not have a city code that corresponds to Newfoundland.

4.Press A twice to exit the setting screen.

The first press of A displays the 12/24-hour setting screen. Pressing Aagain exits the setting screen.

buildings

appliances or

site, airport, or power lines

mountains

 

office

other sources

 

 

equipment,

of electrical

 

 

or a mobile

noise

 

 

phone

 

 

Signal reception is normally better at night than during the day.

Time calibration signal reception takes from two to six minutes, but in some cases it can take as long as 12 minutes. Take care that you do not perform any button operations or move the watch during this time.

600 miles

2,000 miles

Fort Collins

Important!

Normally, your watch should show the correct time as soon as you select your Home City code. If it does not, it should adjust automatically after the next auto receive operation (in the middle of the night). You can also perform manual receive or you can set the time manually.

If you are in an area that does not use Daylight Saving Time (summer time), turn off the DST setting.

Time Calibration Signal Reception

There are two different methods you can use to receive the time calibration signal: auto receive and manual receive.

Auto Receive

With auto receive, the watch automatically picks up the time calibration signal four times a day at 2:00 a.m., 3:00 a.m., 4:00 a.m., and 5:00 a.m. For more information, see “About Auto Receive”.

Manual Receive

Manual receive lets you start a time calibration receive operation with the press of a button. For more information, see “To perform manual receive”.

At distances further than about 600 miles (1,000 kilometers) from the transmitter, signal reception may not be possible during certain times of year or times of day. Radio interference may also cause problems with reception.

Even when the watch is within the reception range of the transmitter, signal reception is impossible if the signal is blocked by mountains or other geological formations between the watch and signal source.

Signal reception is affected by weather, atmospheric conditions, and seasonal changes.

See the information under “Signal Receive Troubleshooting” if you experience problems with time calibration signal reception.

About Auto Receive

When auto receive is turned on, the watch automatically starts to receive the time calibration signal when the digital time in the Timekeeping Mode reaches 2:00 a.m., 3:00 a.m., 4:00 a.m., and 5:00 a.m. each day (calibration times).

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