USER’S GUIDE 2707
Stopwatch
Seconds 1/100 second
Hours Minutes
The stopwatch lets you measure elapsed time, split times, and two finishes.
•The display range of the stopwatch is 23 hours, 59 minutes, 59.99 seconds.
•The stopwatch continues to run, restarting from zero after it reaches its limit, until you stop it.
•Exiting the Stopwatch Mode while a split time is frozen on the display clears the split time and returns to elapsed time measurement.
•The stopwatch measurement operation continues even if you exit the Stopwatch Mode.
•All of the operations in this section are performed in
the Stopwatch Mode, which you enter by pressing
C.
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 measure times with the stopwatch
Elapsed Time
D | ➤D | ➤D | ➤D | ➤A |
Start | Stop |
| Stop | Clear |
Split Time |
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D | ➤A | ➤A | ➤D | ➤A |
Start | Split | Split release | Stop | Clear |
| (SPL displayed) |
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Two Finishes |
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D | ➤A | ➤D | ➤A | ➤A |
Start | Split | Stop | Split release | Clear |
| First runner | Second runner | Display time of |
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| finishes. | finishes. | second runner. |
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| Display time of |
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| first runner. |
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Reference
This section contains more detailed and technical information about watch operation. It also contains important precautions and notes about the various features and functions of this watch.
Auto Return Features
•If you leave the watch in the Alarm, Data Memory, or Hand Setting Mode for two or three minutes without performing any operation, it automatically changes to the Timekeeping Mode.
•If you leave a screen with flashing digits or a cursor on the display for two or three minutes without performing any operation, the watch automatically saves anything you have input up to that point and exits the setting screen.
Data and Setting Scrolling
The A and D buttons are used in various modes and setting screens to scroll through data on the display. In most cases, holding down these buttons during a scroll operation scrolls through the data at high speed.
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
•Signal reception is affected by weather, atmospheric conditions, and seasonal changes.
•This watch is designed to receive the signal transmitted from Mainflingen. This means that reception is best when the antenna built into the 12 o’clock edge of the watch is facing towards Mainflingen. Note, however, that moving the watch while the time calibration signal receive operation is taking place will make stable reception impossible.
•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
•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.
•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.
•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
Underground, in tunnels or in
Near
In trains or cars
•Radio interference can make signal reception impossible.
•Strong electrostatic charge can result in the wrong time being set.
•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.
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 D to cycle through the summer time settings in the sequence shown below.
4.When the setting you want is selected, press B to exit the setting screen.
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. |
| and try again. | |
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 | |
performed. | |||
indicator does | performing some button operation | ||
• Check to make sure the watch | |||
not appear on | during the auto signal receive operation | ||
is in a location where it can | |||
the display. | was performed. | ||
receive the signal. | |||
| • Even if receive is successful, the receive | ||
| • Put the watch in a location | ||
| indicator disappears every day at 3am. | that is suitable for good | |
|
| reception. | |
Time setting is | • If the time is one hour off, the DST setting | • Change the DST setting to | |
incorrect | 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. |
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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
•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
12-hour/24-hour Timekeeping Formats
The
•With the
•With the
Inputting Text
The following describes how to input text in the Alarm and Data Memory Modes.
To input characters
1. When the cursor is on the display, use Aand D to
Cursorcycle through the available letters, numbers and symbols, in the sequence shown below.
l | l l | Press D. |
| Press A. | |
l |
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l | l |
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l | l l |
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| a to z |
| to + | |
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| (space) | * | ||
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| (symbol) | ||
Reminder Text Input | 0 to 9 |
| A to Z |
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(number) |
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| Screen |
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2.When the character you want is at the cursor position, press Cto 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.
Backlight Precautions
The backlight uses an EL
In any mode, press L to illuminate the display for about one second.
•The
•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. | 4 |