Operation Guide 2760 2761

•The current time setting in accordance with the time calibration signal takes priority over any time settings you make manually.

•The watch is designed to automatically update the date and day of the week for the period January 1, 2000 to December 31, 2099. Setting of the date by the time calibration signal cannot be performed starting from January 1, 2100.

•This watch can receive signals that differentiate between leap years and non-leap years.

•Though this watch is designed to receive both time data (hour, minutes, seconds) and date data (year, month, day), certain signal conditions can limit reception to time data only.

•Normally, the signal reception date shown by the last signal screen is the date data included in the received time calibration signal. When only time data is received, however, the last signal screen shows the date as kept in the Timekeeping Mode at the time of signal reception.

•If you are in an area where proper time calibration signal reception is impossible, the watch keeps time within ±15 seconds a month at normal temperature.

•If you have problems with proper time calibration signal reception or if the time setting is wrong after signal reception, check your Home Time Zone value and DST (summer time) settings, and transmitter mode setting. The following are the initial factory defaults for these settings.

Setting

Initial Factory Default

GMT Differential Value

+1.0 (or DST +2.0): Module 2760

 

+0.0 (or DST +1.0): Module 2761

DST (summer time)

DS A (Auto switching)

Transmitter mode

A (Automatic selection)

2760

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

back cover. The Module number (2760 or 2761) will be

 

 

engraved inside the box on the back cover.

Transmitters

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

•The following explains how the watch determines which transmitter it should check first while the watch is configured for automatic transmitter selection.

Module 2760

In this case:

The watch does this:

The first signal search operation after

1. Checks the Mainflingen signal first.

factory default settings are in effect, or after

2. If the Mainflingen signal cannot be

the Home Time Zone 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 2761

 

•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 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.

Power Saving

When turned on, Power Saving automatically enters a sleep state whenever the watch is left for a certain period in an area where it is dark. The table below shows how watch functions are affected by Power Saving.

•There are actually two sleep state levels: “display sleep” and “function sleep”.

Elapsed Time in Dark

Operation

3 to 4 days

Digital display off, but all functions enabled

(Display Sleep)

 

 

 

8 days or more

• Digital display off

(Function Sleep)

• All functions, including analog timekeeping, disabled

•Internal timekeeping maintained

•Wearing the watch inside the sleeve of clothing can cause it to enter the sleep state.

To recover from the sleep state

Perform any one of the following operations.

•Move the watch to a well-lit area. It can take up to two seconds for the display to turn on.

•Press any button.

•Angle the watch towards your face for reading.

To turn Power Saving on and off

 

 

 

 

1. While any screen other than the last signal screen is on

 

 

 

 

the display in the Timekeeping Mode, hold down A

 

until the GMT differential value starts to flash, which

 

 

 

 

indicates the setting screen.

 

 

 

2. Press Cnine times until the Power Saving on/off

 

 

 

 

 

 

 

 

screen appears.

 

 

 

3. Press Dto toggle Power Saving on (on) and off (OFF).

4. Press Ato exit the setting screen.

Adjusting Dial Hand Positions

You can use the procedure in this section to adjust the position of the stopwatch 1/20 second dial hand and the battery level dial hand whenever they do not align with the 12 o’clock position when you enter the Stopwatch Mode.

In this case:

The watch does this:

The first signal search operation after

1. Checks the Rugby signal first.

factory default settings are in effect, or

2. If the Rugby signal cannot be received,

after the Home Time Zone has been

checks the Mainflingen signal.

changed.

 

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.

• Auto receive is turned on whenever the transmitter mode is A, D77.5, or M60. Auto

receive is turned off when the transmitter mode setting is OFF.

• Note that you can change the transmitter mode setting when +0.0 or +1.0 is

Stopwatch 1/20 second dial

 

 

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Battery level dial

Important!

Never move the battery level dial hand to any position other than 12 o’clock. If you do, it will not correctly indicate the battery power level.

To adjust dial hand positions

1.In the Timekeeping Mode, press C five times to enter the Hand Setting Mode.

2.Hold down A until – 0 0 – starts to flash, which indicates the analog setting screen.

3.Press Ato display the dial hand setting screen.

•The dial hand setting screen shows 00:00.00, with the two zeros on the far right flashing. This indicates that the stopwatch 1/20 second dial is selected for adjustment.

selected as the Home Time Zone.

• See “To select the transmitter mode” below.

To select the transmitter mode

 

 

 

 

 

1. In the Timekeeping Mode, press B to display the last

 

 

 

 

 

signal screen.

2. Hold down A until the transmitter mode setting starts

 

 

 

 

 

 

to flash, which indicates the setting screen.

 

 

 

 

 

• If holding down Adoes not display the setting

 

 

 

 

 

 

 

 

 

 

screen, check the current Home Time Zone setting.

 

 

 

Press Bto return to the Timekeeping Mode screen. See “To specify your Home Time Zone” for more information.

3. Use B or D to select the transmitter mode setting you want to use.

• The following are the available transmitter mode settings. A: Automatic selection of the Mainflingen or Rugby signal D 77.5: Reception of the Mainflingen signal

M 60: Reception of the Rugby signal

OFF: Auto receive off

4.Press Ato exit the setting screen and return to the last signal screen.

• If you want to the return to the Timekeeping Mode screen, press B.

• Signal reception can take up to 14 minutes when the A option is selected.

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 2099. The day of the week is calculated automatically in accordance with the date.

•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 battery replaced or when battery power drops to Level 4.

•The current time for all time zones in the Timekeeping Mode and Dual Time Mode is calculated in accordance with the Greenwich Mean Time (GMT) differential of each

zone, based on your Home Time Zone time setting.

4.Press Dto advance the hand of the stopwatch 1/20 second dial one step, until it is aligned with the 12 o’clock position.

5.After the 1/20 second dial hand is aligned properly, press C.

•This causes the two far left zeros of the 00:00.00 figures to flash, which indicates that the battery level dial is selected for adjustment.

6.Press Dto advance the hand of the battery level dial one step, until it is aligned with the 12 o’clock position.

7.Press Ato exit the setting screen.

•To return to the Timekeeping Mode, press C.

Illumination Precautions

•The illumination provided by the light may be hard to see when viewed under direct sunlight.

•Illumination automatically turns off whenever an alarm sounds.

•Frequent use of illumination shortens the battery operating time.

Auto light switch precautions

•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 illuminate the face of the watch. To avoid running down the battery, turn off the auto light switch whenever engaging in activities that might cause frequent illumination of the face.

•Note that wearing the watch under your sleeve while the auto light switch is turned on can cause frequent illumination of the face and can run down the battery.

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

More than 15 degrees

more than 15 degrees above or below parallel. Make

too high

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

 

 

• Illumination turns off after about two seconds, even if

 

you keep the watch pointed towards your face.

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