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Operation Guide 5055
5
• Overuse of display illumination or the beeper can 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 normal
timekeeping and function will resume as soon as battery
power recovers to normal levels, which is indicated
when the R indicator disappears.
•If R (recover) 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.
Power recovery
mode indicator
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.
• 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.
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 Fluorescent Lighting (500 lux)
Approximate
Exposure Time
8 minutes
30 minutes
48 minutes
8 hours
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
Level 5 Level 4 Level 3 Level 2 Level 1
2 hours 21 hours 6 hours
6 hours 78 hours 21 hours
10 hours 126 hours 34 hours
106 hours - - - - - - - - - - - - - - - -
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 Fluorescent
Lighting (500 lux)
▲
▲
▲
• 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 data 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 D in the Timekeeping Mode will cycle the lower display between the
screens shown below.
D
▲
▲
D
Home City date Home City time Dual Time
▲
D
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.
To set the time and date manually
1.In the Timekeeping Mode, hold down A for about five
seconds until the left dial hand points to T1 and the city
code flashes on the upper display. This is the setting
screen.
2.Use D and B to 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”.
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3. Press C to move the flashing in the sequence shown below to select the other
setting.
Seconds
12/24-Hour
Format
Hour
Minutes
DST
Month
Year
City Code
DayPower Saving
4. When the timekeeping setting you want to change is flashing, use D or B to
change it as described below.
Change the city code
Cycle between Auto DST (AvtA),
Daylight Saving Time (
ON) and
Standard Time (
OFF).
Use D (east) and B
(west).
Press D.
Screen: To do this: Do this:
5. Press A twice to exit the setting screen.
• 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”.
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
(
) and off ( )
Press D.
Press D.
Use D (+) and B (–).
Press D.
• 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 12-hour format, the P (PM) indicator appears to the left of the hour digits for
times in the range of noon to 11:59 p.m. and no indicator appears to the left of the
hour digits 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, without
any indicator.
• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all other modes.
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.
• Though the time calibration signal 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 A for about five
seconds until the left dial hand points to T1 and the city
code flashes on the upper display. This is the setting
screen.
2.Press C and the DST setting screen appears.
3.Use D to cycle through the DST settings in the
sequence shown below.
Auto DST (
AvtA
) DST off (
OFF
) DST on (
ON
)
4. When the setting you want is selected, press A twice to exit the setting screen.
• The DST indicator appears to indicate that Daylight Saving Time is turned on.
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DST indicator
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
1.In the Timekeeping Mode, hold down A for about five
seconds until the left dial hand points to T1 and the city
code flashes on the upper display.
2.Press A again. 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 screen.
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Left dial hand