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Operation Guide 5173
Power recovery
Overuse of display illumination or the beeper can
mode indicator
cause the R (Recover) indicator to appear in the upper
display, which indicates that the watch is in the battery
power recovery mode. Face illumination, the alarm,
the countdown timer alarm, time signals, and all hand
operations are disabled in the power recovery mode.
The watch continues to keep time internally, so regular
timekeeping and function will resume as soon as battery
power recovers to normal levels, which is indicated when
the R indicator disappears.
If R appears frequently, it probably means that remaining
battery power is low. Leave the watch in bright light for
some time to allow it to charge.
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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)
Outdoor sunlight (50,000 lux)
Sunlight through a window (10,000 lux)
Daylight through a window on a cloudy day (5,000 lux)
Indoor fl uorescent lighting (500 lux)
For details about the battery operating time and daily operating conditions, see the
"Power Supply" section of the Specifi cations (page E-92).
Stable operation is promoted by frequent exposure to light.
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Timekeeping
You can adjust the Home City time and date 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" (page E-75).
Pressing D in the Timekeeping Mode will cycle the lower display between the
screens shown below.
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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 fi rst
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 (page E-34) and Dual Time
City (page E-75) are displayed in accordance with the time and date settings you
confi gure for the Timekeeping Mode.
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C to change the fl ashing screen content in the sequence shown below to
3.
Press
select the other settings.
City Code
DST
12/24-Hour Format
Power Saving
Day
Month
4.
When the timekeeping setting you want to change is fl ashing, use
change it as described below.
E-68
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
Recovery Times
The table below shows the amount exposure that is required to take the battery from
one level to the next.
Approximate Exposure Time
8 minutes
30 minutes
Outdoor sunlight
(50,000 lux)
48 minutes
Sunlight through a window
8 hours
(10,000 lux)
Daylight through a window
on a cloudy day (5,000 lux)
Indoor fl uorescent lighting
(500 lux)
The above exposure time values are all for reference only. Actual required
exposure times depend on lighting conditions.
To set the time and date manually
Screen:
Seconds
Hour
Year
Minutes
D or B to
Approximate Exposure Time
Exposure Level
Level 5
Level 4
(Brightness)
2 hours
6 hours
10 hours
106 hours
Home City Date
D
Dual Time
D
1.
In the Timekeeping Mode, hold down
seconds until the left dial hand points to T1 and the city
code fl ashes on the upper display. This is the setting
mode.
D and B to select the city code you want.
2.
Use
Make sure you select your Home City code before
changing any other setting.
For full information on city codes, see the "City Code
Table" at the back of this manual.
To do this:
Change the city code.
Cycle between Auto DST (
), Daylight
Saving Time (
) and Standard Time
(
).
Toggle between 12-hour (
) and
24-hour (
) timekeeping.
Reset the seconds to
.
Change the hour and minutes.
Change the year, month, or day.
Toggle between Power Saving on (
off (
).
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Level 3
Level 2
Level 1
21 hours
6 hours
78 hours
21 hours
126 hours
34 hours
– – –
– – –
E-63
Home City Time
D
E-65
A for about fi ve
E-67
Do this:
Use D (east) and B (west).
Press D.
Press D.
Press D.
Use D (+) and B (–).
) and
Press D.
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