Operation Guide 3107
Setting the Time and Date Manually
Make sure you select your Home City code before you change the current time and date settings. World Time Mode times are all displayed in accordance with the Timekeeping Mode settings. Because of this, World Time Mode times will not be correct if you do not select the proper Home City code before setting the time and date in the Timekeeping Mode.
To set the time and date manually
City code | 1. In the Timekeeping Mode, hold down Auntil the city | ||||||
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| 2. Press Cto change the flashing contents in the |
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City CodeDST 
Seconds Hour Format
Power 
Day 
Month 
Year 
Minutes 
Saving
3.When the setting you want to change is flashing, use B and/or Dto change it as described below.
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TYO Change the city code |
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| Use D(east) and B(west). | ||
| Cycle between auto DST ( | ), | Press D. | ||
| Standard Time ( | ), and |
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| Daylight Saving Time ( | ) |
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| Toggle between | Press D. | |||
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| Reset the seconds to |
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| Change the hour or minutes | Use D(+) and B | |||
| Change the year, month, or day |
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| Toggle Power Saving on ( | ) and | Press D. | ||
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•See “City Code Table” for a complete list of available city codes.
• Auto DST (
) can be selected only while LIS, LON, MAD, PAR, ROM, BER, STO, ATH, MOW, HKG, BJS, TPE, SEL, TYO, HNL, ANC, YVR, LAX, YEA, DEN, MEX, YWG, CHI, MIA, YTO, NYC, YHZ, or YYT is selected as the Home City code. For more information, see “Daylight Saving Time (DST)” below.
•For information about settings other than the time and date, see the following. Power Saving: Power Saving Function
4.Press Ato exit the setting screen.
Daylight Saving Time (DST)
Daylight Saving Time (summer time) advances the time setting by one hour from Standard Time. Remember that not all countries or even local areas use Daylight Saving Time.
The time calibration signals transmitted from Mainflingen (Germany), Anthorn (England), or Fort Collins (the United States) include both Standard Time and DST data. When the Auto DST setting is turned on, the watch switches between Standard Time and DST (summer time) automatically in accordance with the signals.
•The time calibration signals transmitted from Fukushima and Fukuoka/Saga (Japan)
do not include summer time data.
• The default DST setting is Auto DST (
) whenever you select LIS, LON, MAD, PAR, ROM, BER, STO, ATH, MOW, HKG, BJS, TPE, SEL, TYO, HNL, ANC, YVR, LAX, YEA, DEN, MEX, YWG, CHI, MIA, YTO, NYC, YHZ, or YYT as your Home City code.
•If you experience problems receiving the time calibration signal in your area, it probably is best to switch between Standard Time and Daylight Saving Time (summer time) manually.
To change the Daylight Saving Time (summer time) setting
1.In the Timekeeping Mode, hold down Auntil the city code starts to flash, which indicates the setting screen.
2.Press Cand the DST setting screen appears.
3.Use D to cycle through the DST settings in the sequence shown below.
Auto DST ( ) |
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| DST on ( ) |
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4. When the setting you want is selected, press Ato exit the setting screen.
•The DST indicator appears to indicate that Daylight Saving Time is turned on.
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.
Button Operation Tone
The button operation tone sounds any time you press one of the watch’s buttons. You can turn the button operation tone on or off as desired.
•Even if you turn off the button operation tone, the alarm, Hourly Time Signal, and Countdown Timer Mode alarm all operate normally.
To turn the button operation tone on and off
In any mode (except when a setting screen is on the
Mute indicator display), hold down Cto toggle the button operation tone on (mute indicator not displayed) and off (mute indicator displayed).
•Since the C button is also the mode change button, holding it down to turn the button operation tone on or off also causes the watch’s current mode to change.
•The mute indicator is displayed in all modes when the button operation tone is turned off.
Power Saving Function
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| When turned on, the Power Saving function enters a sleep | |
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Power saving indicator |
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Elapsed Time | Display | Operation | |||
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60 to 70 minutes | Blank, with Power Saving | All functions enabled, except | |||
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| indicator (PS) flashing | for the display |
6 or 7 days | Blank, with Power Saving | Beeper tone, illumination, and | |||
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| indicator (PS) not flashing | display are disabled. |
•Wearing the watch inside the sleeve of clothing can cause it to enter the sleep state.
•The watch will not enter the sleep state between 6:00 AM and 9:59 PM. If the watch is already in the sleep state when 6:00 AM arrives, however, it will remain in the sleep state.
To recover from the sleep state
Perform any one of the following operations.
•Move the watch to a
•Press any button.
To turn Power Saving on and off
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| On/Off status | 1. In the Timekeeping Mode, hold down Auntil the city | |||||
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| 2. Press C nine times until the Power Saving on/off | ||
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| 3. Press D to toggle Power Saving on ( | ) and off | ||||||
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•The Power Saving indicator (PS) is on the display in all modes while Power Saving is turned on.
Auto Return Features
•If you leave the watch in the Alarm Mode for two or three minutes without performing any operation, it returns to the Timekeeping Mode automatically.
•If you leave the watch with a flashing setting on the display for two or three minutes without performing any operation, the watch exits the setting screen automatically.
Scrolling
The Band Dare used in various modes and setting screens to scroll through data. In most cases, holding down these buttons during a scroll operation scrolls through the data at high speed.
Initial Screens
When you enter the World Time or Alarm Mode, the data you were viewing when you last exited the mode appears first.
Radio-controlled Atomic Timekeeping Precautions
•Strong electrostatic charge can result in the wrong time being set.
•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.
•Even if the time calibration signal is received properly, certain conditions can cause the time setting to be off by up to one second.
•The current time setting in accordance with the time calibration signal takes priority over any time settings you make.
•The watch is designed to update the date and day of the week automatically for the period January 1, 2000 to December 31, 2099. Setting of the date by a time calibration signal cannot be performed starting from January 1, 2100.
•This watch can receive signals that differentiate between leap years and
•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 with the precision noted in “Specifications”.
•If you have problems with proper time calibration signal reception or if the time setting is wrong after signal reception, check your current city code, DST (summer time), and auto receive settings.
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 day of the week is displayed automatically in accordance with the date (year, month, and day) settings.
•The year can be set in the range of 2000 to 2099.
•The watch’s
•The times for the Timekeeping Mode and all the city codes of the World Time Mode are calculated in accordance with each city’s UTC differential.
•The UTC differential is a value that indicates the time difference between a reference point in Greenwich, England and the time zone where a city is located.
•The letters “UTC” is the abbreviation for “Universal Time Coordinated”, which is the
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atomic (cesium) clocks that keep time accurately to within microseconds. Leap |
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seconds are added or subtracted as necessary to keep UTC in sync with the Earth’s |
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rotation. | 5 |
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