Operation Guide 5064
Charging Precautions
Certain charging conditions can cause the watch to become very hot. Avoid leaving the watch in the areas described below whenever charging its rechargeable battery. Also note that allowing the watch to become very hot can cause its liquid crystal display to black out. The appearance of the LCD should become normal again when the watch returns to a lower temperature.
Warning!
Leaving the watch in bright light to charge its rechargeable battery can cause it to become quite hot. Take care when handling the watch to avoid burn injury. The watch can become particularly hot when exposed to the following conditions for long periods.
•On the dashboard of a car parked in direct sunlight
•Too close to an incandescent lamp
•Under direct sunlight
Charging Guide
After a full charge, timekeeping remains enabled for up to about six months.
•The following table shows the amount of time the watch needs to be exposed to light each day in order to generate enough power for normal daily operations.
Exposure Level (Brightness) | Approximate |
| Exposure Time |
Outdoor Sunlight (50,000 lux) | 8 minutes |
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Sunlight Through a Window (10,000 lux) | 30 minutes |
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Daylight Through a Window on a Cloudy Day (5,000 lux) | 48 minutes |
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Indoor Fluorescent Lighting (500 lux) | 8 hours |
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•For details about the battery operating time and daily operating conditions, see the “Power Supply” section of the Specifications.
•Stable operation is promoted by frequent exposure to light.
Recovery Times
The table below shows the amount exposure that is required to take the battery from one level to the next.
Exposure Level | Approximate Exposure Time |
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(Brightness) |
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Level 5 | Level 4 | Level 3 | Level 2 | Level 1 | |
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| ▲ | ▲ | ▲ |
Outdoor Sunlight |
| 2 hours |
| 21 hours | 6 hours |
(50,000 lux) |
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Sunlight Through a |
| 6 hours |
| 78 hours | 21 hours |
Window (10,000 lux) |
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Daylight Through a |
| 10 hours |
| 126 hours | 34 hours |
Window on a Cloudy |
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Day (5,000 lux) |
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Indoor Fluorescent |
| 106 hours |
| - - - - - - - - | - - - - - - - - |
Lighting (500 lux) |
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•The above exposure time values are all for reference only. Actual required exposure times depend on lighting conditions.
Timekeeping
You can adjust the Home Time city date and time in the Timekeeping Mode manually. You also can simultaneously display the current time in one other time zone, by specifying a Dual Time City.
•For information about selecting a Dual Time City, see “To specify the Dual Time City”.
•Pressing Din the Timekeeping Mode will cycle the lower display between the screens shown below.
Home City DateHome City TimeDual Time
▲ | ▲ |
D | D |
▲ | D |
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Read This Before You Set the Time and Date!
This watch is preset with a number of city codes, each of which represents the time zone where that city is located. When setting the time, it is important that you first select the correct city code for your Home City (the city where you normally use the watch). If your location is not included in the preset city codes, select the preset city code that is in the same time zone as your location.
• Note that all of the times for the World Time City codes and Dual Time City are |
displayed in accordance with the time and date settings you configure for the |
Timekeeping Mode. |
4.When the timekeeping setting you want to change is flashing, use Dor B to change it as described below.
Screen: | To do this: |
|
| Do this: |
| Change the city code |
| Use D(east) and B | |
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| (west). |
| Cycle between Auto DST (AvtA), | Press D. | ||
| Daylight Saving Time (ON) and |
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| Standard Time (OFF). |
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| |
| Toggle between | ) and | Press D. | |
| ) timekeeping |
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| |
| Reset the seconds to |
| Press D. | |
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| Change the hour and minutes |
| Use D(+) and | |
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| Change the year, month, or day |
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| Toggle between Power Saving on | Press D. | ||
| ( ) and off ( | ) |
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5. Press Atwice to exit the setting mode.
•For details about the Daylight Saving Time setting, see “To change the Daylight Saving Time (summer time) setting”. For information about Power Saving, see “To turn Power Saving on and off”.
•Auto DST (AvtA) can be selected only while LIS, LON, MAD, PAR, ROM,
BER, STO, ATH, MOW, TPE, SEL, TYO, HNL, ANC, YVR, LAX, YEA,
DEN, MEX, CHI, MIA, YTO, NYC, YHZ, or YYT is selected as the Home City code. For more information, see “Daylight Saving Time (DST)” below.
•The day of the week is displayed automatically in accordance with the date (year, month, and day) settings.
12-hour and 24-hour timekeeping
•With the
•With the
•The
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), and 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.
•Though the time calibration signals transmitted by the Fukushima and Fukuoka/ Saga, Japan transmitters include summer time data, summer time currently is not implemented in Japan (as of 2008).
•The default DST setting is Auto DST (AvtA) whenever you select LIS, LON,
MAD, PAR, ROM, BER, STO, ATH, MOW, TYO, ANC, YVR, LAX, YEA,
DEN, MEX, 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 Afor about five | |
ll ll | seconds until the left dial hand points to T1 and the city | ||
code flashes on the upper display. This is the setting | |||
l | l | ||
l | l | mode. | |
l | l | ||
ll ll |
| ||
2. Press C. This will display the DST setting screen.
3. Use Dto cycle through the DST settings in the sequence shown below.
Auto DST (AvtA) 
DST off (OFF) 
DST on (ON) DST indicator
4.When the setting you want is selected, press Atwice to exit the setting mode.
• The DST indicator appears to indicate that Daylight Saving Time is turned on.
Dual Time
Dual Time lets you display the current time in another time zone called your “Dual Time City”, in addition your Home City’s current time. This feature is very handy for business professionals and others who need to keep track of the current time in two different time zones.
•For information about how to display the current time in the Dual Time City in the lower display, see “Timekeeping”.
To specify the Dual Time City
To set the time and date manually
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|
| 1. In the Timekeeping Mode, hold down Afor about five |
| ll ll | seconds until the left dial hand points to T1 and the city | |
l |
| l | code flashes on the upper display. This is the setting |
l |
| ||
|
| l |
|
l | l | mode. | |
| ll ll | ||
2. Use Dand Bto select the city code you want.
• Make sure you select your Home City code before changing any other setting.
• For full information on city codes, see the “City Code Table”.
3. Press C to change the flashing screen content in the sequence shown below to select the other settings.
City Code DST 
SecondsHour
Format
Power Saving 
Day 
Month 
Year 
Minutes 
l | ll ll |
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l | ||
l |
| l |
l | l | |
| ll ll |
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Left dial hand
1.In the Timekeeping Mode, hold down Afor about five seconds until the left dial hand points to T1 and the city code flashes on the upper display. This is the setting mode.
2.Press Aagain. The left dial hand will move to T2 and the current Dual Time City code will start to flash on the upper display. This is the Dual Time City selection screen.
3.Use D(eastward) and B (westward) to scroll through the available city codes.
•See the “City Code Table” for information about city codes.
4.Press A to exit the setting mode.
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