USER’S GUIDE 2512

Initial Screens

When you enter the Alarm or World Time Mode, the data you were viewing when you last exited the mode appears first.

Time Calibration Signal Reception

∙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 1000 kilometers.

∙At distances further than about 500 kilometers, the signal may become weak and reception may be impossible under certain conditions.

∙Signal reception may be poor in the shaded area on the map, even though it is within 1,000 kilometers of the signal transmitter.

Frankfurt

General Precautions

∙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.

∙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.

∙The time calibration signal is bounced off the ionosphere. Because of this, such factors as changes in the reflectivity of the ionosphere, as well as movement of the ionosphere to higher altitudes due to seasonal atmospheric changes or the time of day may change the reception range of the signal and make reception temporarily impossible.

∙Reception is best when the antenna built into the 12 o'clock edge of the watch is facing in the general direction of the signal transmitter. Note, however, that moving the watch while the time calibration signal receive operation is taking place will make stable reception impossible.

∙Think of the watch as acting like a TV or radio when it is receiving the calibration signal. When receiving indoors, move to a location as near as possible to a window.

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

Near TVs, refrigerators, computers, or other household appliances

Far away from broadcasting stations among ferro-concrete structures or near mountains

Underground, in tunnels or in ferro-concrete buildings

Near high-tension wires, neon signs, or radio stations with interfering frequencies Near railroads, highways or airports

In trains or cars

∙Radio interference can make signal reception impossible.

∙Strong electrostatic charge can result in the wrong time being set.

Troubleshooting

Check the following points whenever you experience problems with your watch.

Problem

Probable Cause

What you should do

Cannot perform

∙ The watch is not in the Timekeeping Mode.

∙ Enter the Timekeeping Mode

manual receive.

∙ You do not select one of the following

and try again.

 

City Codes as your Home City Code:

∙ Select the correct Home City

 

BER, PAR, LON, or ATH.

Code.

Auto receive is

∙ You changed the time setting manually.

∙ Perform manual signal receive

turned on, but

∙ The watch was not in the Timekeeping

or wait until the next auto

the receive

or World Time Mode, or you were

signal receive operation is

indicator does

performing some button operation

performed.

not appear on

during the auto signal receive operation

∙ Check to make sure the watch

the display.

was performed.

is in a location where it can

 

∙ Even if receive is successful, the

receive the signal.

 

receive indicator disappears every day

∙ Put the watch in a location

 

at 3am.

that is suitable for good

 

∙ Time data (hour, minutes, seconds) only

reception.

 

was received during the last receive

 

 

operation. The receive indicator appears

 

 

only when time data and date data

 

 

(year, month, day) are both received.

 

Time setting is

∙ If the time is one hour off, the DST

∙ Change the DST setting to

incorrect

setting may be incorrect.

AUTO DST.

following signal

∙ The Home City Code setting is not

∙ Select the correct Home City

reception.

correct for the area where you are using

Code .

 

the watch.

 

Auto Summer Time (DST) Switching

The time calibration signal transmitted from Mainflingen, Germany includes both standard time and summer time (Daylight Saving Time) data. When auto summer time (DST) switching is turned on, the watch switches between standard time and summer time (DST) automatically in accordance with the calibration signal.

∙Daylight Saving Time (DST) advances the time setting by one hour from Standard Time. Remember that not all countries or even local areas use Daylight Saving Time.

∙When using the watch within the reception range of the Mainflingen transmitter, and BER, PAR, LON, or ATH is selected as the Home City code, select AUTO DST to turn on the auto summer time setting.

∙The default auto summer time setting is AUTO DST whenever you select BER, PAR, LON or ATH as your Home City code.

∙If you experience problems receiving the time calibration signal in your area, it is probably best to turn off auto time switching.

To select the auto summer time setting

1.In the Timekeeping Mode, press B. This causes the current auto receive on/off setting (the receive indicator) to flash, which indicates the setting screen.

2.Press C twice until the summer time (DST) setting screen appears.

3.Use Dto cycle through the summer time settings in the sequence shown below.

4.When the setting you want is selected, press Bto exit the setting screen.

Timekeeping

∙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 2039.

∙The watch’s built-in full automatic calendar automatically 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.

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

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

(UTC ) data.

*

The letters “UTC” stands for “Universal Time Coordinated,” which is the world-wide

*scientific standard of timekeeping. It is based upon carefully maintained atomic (cesium) clocks that keep accurate 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 the 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, with 24 indicator.

Inputting Text

The following describes how to input text in the Alarm and Data Memory Modes.

To input characters

 

Cursor

1. When the cursor is on the display, use Aand Dto

 

 

cycle through the available letters, numbers and

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

symbols, in the sequence shown below.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Press D.

 

 

 

 

 

 

 

 

 

 

 

 

Press A.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(space)

 

 

 

 

 

 

a to z

 

 

 

 

 

* to +

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(lower-case)

 

 

 

 

 

(symbol)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reminder Text Input

 

 

 

 

 

 

0 to 9

 

 

 

 

 

 

 

A to Z

 

 

 

 

 

 

 

 

 

 

(number)

 

 

 

 

 

 

(upper-case)

 

 

 

 

 

 

 

Screen

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.When the character you want is at the cursor position, press C to 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.

Data Memory Management

Data memory can hold up to 315 characters total, while each record can contain up to 63 characters. This means that 40 records can be stored in data memory when each record contains seven characters of text or less.

Power Saving Function

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

Elapsed Time

Display

 

Operation

in Dark

 

 

 

3 to 4 days

Blank, with Sleep indicator (

)

All functions enabled, except

 

 

 

for the display

7 or 8 days

Blank, with Sleep indicator (

)

All functions disabled

∙Wearing 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 five seconds for the display to turn on.

∙Press any button.

To turn Power Saving on and off

1.In the Timekeeping Mode, press B. This causes the curreut auto receive on/off setting (the receive indicator)

to flash, which indicates the setting screen.

2. Press C10 times until the Power Saving on/off screen appears.

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

4.After the setting is the way you want, press B to exit the setting screen.

Backlight Precautions

The backlight uses an EL (electro-luminescent) panel that causes the entire display to glow for easy reading in the dark.

In any mode, press Lto illuminate the display for about one second.

∙The electro-luminescent panel that provides illumination loses power after very long use.

∙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.

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