User manual

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USER’S GUIDE 2506

About This Manual

• Button operations are indicated using the letters shown

in the illustration.

• 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 C to change from mode to mode. After you perform an operation in any

mode, pressing C returns to the Timekeeping Mode.

• In any mode, press L to illuminate the display for about two seconds.

World Time Mode

Telememo Mode

Timekeeping Mode

Day Counter Mode

▲

Stopwatch Mode

▲

Alarm Mode

▲

Press C.

Timekeeping

Use the Timekeeping Mode to set and view the current time and date. You can also

display the Last Signal and World Time screens.

▲

Last Signal Timekeeping World Time

Receive date

Receive time

Receive indicator

Day of week

Hour : Minutes

PM indicator Seconds

Month – Day

Press D.

Hold down B.

Release

Current time in the

selected city code

City code

Timekeeping Mode time

• The Last Signal screen shows the time and date of the last successful time

calibration signal reception.

• The World Time screen shows the data you were viewing when you last exited the

World Time Mode.

Current Time Setting

Normally, you do not need to do anything to set the current time as long as you are

within an area in West Europe where the watch can pick up the time calibration signal.

You can also set the current time manually when you are outside the range of the

signal.

• Before using the watch after purchasing it, use the procedure under “Selecting Your

Home City Code” to specify your home city, and then use the procedure under “To

perform manual time calibration signal reception.”

• Note that after you set your Home City code, you must also turn on the watch’s time

calibration signal receiver if you want to enable auto time calibration. See “About

Auto Receive” for more information.

• See “Setting the Time and Date Manually” for information about manual settings.

Setting the Time and Date Manually

The times displayed in the Timekeeping Mode and World Time Mode are linked. Even

if you plan to use the watch without enabling auto time calibration, be sure to select a

Home City code (the city code whose time and date you are setting), before you set

the time and date.

To set the current time and date manually

1. In the Timekeeping Mode, hold down A until the

current Auto Receive On/Off setting starts to flash,

which indicates the setting screen.

2. Press C to move the flashing in the sequence shown

below to select other settings.

12-hour format indicator

City code

3. When the setting you want to change is flashing, use B and/or D to change it as

described below.

Setting

Auto Receive

DST

12/24-Hour format

City Code

Button Operations

Press D to toggle auto receive on and off.

Press D to toggle between Daylight Saving TIme (ON) and

standard time (OFF).

Press D to toggle between 12-hour (12H) and 24-hour (24H)

timekeeping.

Use D (+) and B (–) to change the setting.

Auto

Receive

Hour

12/24-Hour

Format

City Code

SecondsDST

Day

Month Year

Minutes

• Auto Receive setting is used for time calibration signal reception only. See “About

Auto Receive” for details.

• See “City Code Table” for a complete list of available codes.

• Daylight Saving Time (DST) advances the time setting by one hour from Standard

Time. Remember that no all countries or even local areas use Daylight Saving

Time.

4. Press A to exit the setting screen.

Seconds

Hour, Minutes,

Year, Month, Day

Press D to reset to 00.

Use D (+) and B (–) to change the setting.

Selecting Your Home City Code

You can select a city code for your Home City (the city where you normally use the

watch). This data can be changed any time you move to another geographic area.

• See “City Code Table” for a complete list of available codes.

To select your Home City code

1. In the Timekeeping Mode, hold down A until the

current Auto Receive On/Off setting starts to flash,

which indicates the setting screen.

2. Press C three times to move the flashing to the City

Code setting.

3. Use D (+) and B (–) to change it.

4. Press A to exit the setting screen.

City code

Time Calibration Signal Reception

This watch is designed to pick up a time calibration signal transmitted from

Mainflingen, Germany and update its time setting in accordance with the signal. There

are two different methods you can use to receive the signal: Auto Receive and

Manual Receive. With Auto Receive, the watch automatically receives the calibration

signal three times each day and makes appropriate adjustments. With Manual

Receive, you perform a specific button operation to receive the calibration signal.

Note

• If you are using the time calibration signal to set the time for this watch, be sure to

correctly set your home city. Otherwise, there is the chance that the watch will not

set the correct time. See the “To select your Home City code” for details.

• This watch automatically switches between DST and standard time while BER is

selected as the home city code. For any other home city code, you must perform the

procedure under “To set the current time and date manually” to switch between DST

and standard time.

• Time calibration reception is limited to specific geographic areas in West Europe.

• The current time setting in accordance with the time calibration signal takes priority

over any time settings you make.

• The watch is designed to automatically update the date and day of the week for the

period January 1, 2000 to December 31, 2039. Setting of the date by the time

calibration signal cannot be performed starting from January 1, 2040.

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

• Auto Receive is turned on when the watch is shipped from the factory.

• See the information under “Time Calibration Signal Reception Precautions”

if you experience problems with time calibration signal reception.

To perform manual time calibration signal reception

1. Place the watch on a stable surface to its top (12

o’clock side) is facing in the general direction of

Frankfurt, Germany.

• This puts the watch in the optimum position for time

calibration signal reception.

2. In the Timekeeping Mode, hold down D for about two

seconds, until the watch beeps.

• At this time, the

indicator on the watch’s display

should scroll from left to right, which indicates that

signal reception has started.

• Time calibration signal reception takes from four to 11

minutes. Take care that you do not move the watch

during this time.

• After signal reception is complete, the display of the

watch changes to the Last Signal screen, which

shows the new signal receive date and time.

Current time

Receive indicator

Note

• To interrupt a receive operation and return to the Timekeeping screen, press D.

• If the receive operation is unsuccessful, the message “ERR” appears on the Last

Signal screen for about one or two minutes. After that, the watch returns to the

Timekeeping screen.

• You can also change from the Last Signal screen to the Timekeeping screen by

pressing D.

About the Receive Indicator

The receive indicator shows the strength of the calibration signal being received. For

best reception, be sure to keep the watch in a location where signal strength is

strongest.

• Even in an area where signal strength is strong, it takes about 10 seconds for signal

reception to stabilize enough for the receive indicator to indicate signal strength.

Weak Strong

Summary of content (4 pages)

PAGE 1
USER’S GUIDE 2506 About This Manual • Button operations are indicated using the letters shown in the illustration. • 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 Day Counter Mode • Press C to change from mode to mode. After you perform an operation in any mode, pressing C returns to the Timekeeping Mode.
PAGE 2
USER’S GUIDE 2506 • Use the receive indicator as a guide for checking signal strength and for finding the best location for the watch during signal receive operations. • The receive indicator remains on the display in all modes following reception of the time calibration signal and calibration of the watch’s time setting. The receive indicator does not appear if signal reception was unsuccessful or after manual adjustment of the current time setting.
PAGE 3
USER’S GUIDE 2506 Stopwatch To toggle a city code time between standard time and Daylight Saving Time 1. In the World Time Mode, use B and D to display the city code (time zone) whose standard time/Daylight Saving Time setting you want to change. 2. Hold down A for about two seconds to toggle Daylight Saving Time (DST displayed) and standard time (DST not displayed). • The “DST” indicator is on the display whenever you display a city code for which Daylight Saving Time is turned on.
PAGE 4
USER’S GUIDE 2506 Time Calibration Signal Reception Precautions • This watch is able to receive the time calibration signal transmitted from Mainflingen, Germany (located 25 kilometers southeast of Frankfurt). Signal reception is possible within the area represented by a circle with a radius of about 800 kilometers. • Even when the watch is within the reception range, signal reception is impossible if the signal is blocked by mountains or other geological formations between the watch and signal source.