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Operation Guide 3406
4. When the timekeeping setting you want to change is flashing, use D or B to
change it as described below.
Screen:
To do this:
Change the city code
Cycle between Auto DST (
Saving Time (
) and Standard Time
(
).
Toggle between 12-hour (
hour (
) timekeeping
Reset the seconds to
Change the hour and minutes
Change the year, month, or day
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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.
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If you change your Home City to one that is within the same transmitter area, the
current DST setting (Auto DST) will be retained. If you change to a city that is
outside your current transmitter area, DST will be turned off automatically.
Transmitter
Covered City Codes
Japan
TPE, SEL, TYO
China
HKG, BJS
U.S.
HNL, ANC, YVR, LAX, YEA, DEN, MEX, CHI, NYC, YHZ, YYT
Europe (U.K., Germany)
LIS, LON, MAD, PAR, ROM, BER, STO, ATH, MOW
None
All other city codes
4. When the setting you want is selected, press A to exit the setting screen.
The DST indicator appears to indicate that Daylight Saving Time is turned on.
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To turn the button operation tone on and off
1. In the Timekeeping Mode, hold down A until the city code starts to flash, which
indicates the setting screen.
2. Press C nine times until the current button operation tone setting (
appears.
3. Press D to toggle the setting between
4. Press A to exit the setting screen.
The mute indicator is displayed in all modes when the button operation tone is
turned off.
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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 well-lit area.
Press any button.
Angle the watch towards your face for reading (page E-48).
To turn Power Saving on and off
1. In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2. Press C 11 times until the Power Saving on/off screen
appears.
3. Press D to toggle Power Saving on (
4. Press A to exit the setting screen.
The Power Saving indicator is on the display in all
modes while Power Saving is turned on.
On/Off status
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Do this:
Use D (east) and B
(west).
Press D.
), Daylight
Press D.
) and 24-
Press D.
Use D (+) and B (–).
Use D (+) and B (–).
or MUTE)
(tone on) and MUTE (tone off).
) and off (
).
Screen:
To do this:
Toggle the button operation tone between
(on) and
(off)
Toggle the illumination duration between
(approximately 1.5 seconds) and
(approximately 3 seconds).
Toggle between Power Saving on (
off (
)
5. Press A to exit the setting screen.
AvtA
Auto DST (
) 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,
NYC, YHZ, or YYT is selected as the Home City code. For more information, see
"Daylight Saving Time (DST)" (page E-62).
The day of the week is displayed automatically in accordance with the date (year,
month, and day) settings.
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 2010).
The default DST setting is Auto DST (
AvtA
PAR, ROM, BER, STO, ATH, MOW, TYO, ANC, YVR, LAX, YEA, DEN, MEX, CHI,
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 until the city
code starts to flash, which indicates 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 (
DST indicator
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, alarms,
the Hourly Time Signal, and other beepers all operate
normally.
Mute indicator
Power Saving Function
When turned on, the Power Saving function enters a sleep
Power saving indicator
state automatically whenever the watch is left in an area
for a certain period where it is dark. The table below
shows how watch functions are affected by the Power
Saving function.
Elapsed Time
Display
in Dark
60 to 70 minutes
Blank, with Power Saving
indicator flashing
6 or 7 days
Blank, with Power Saving
indicator not flashing
Wearing the watch inside the sleeve of clothing can cause it to enter the sleep state.
Radio-controlled Atomic Timekeeping Precautions
Strong electrostatic charge can result in the wrong time being set.
The time calibration signal bounces 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 manually.
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 the time
calibration signal cannot be performed starting from January 1, 2100.
This watch can receive signals that differentiate between leap years and non-leap
years.
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.
Do this:
Press D.
Press D.
Press D.
) and
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) whenever you select LIS, LON, MAD,
D
D
)
DST off (
)
DST on (
)
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Operation
All functions enabled, except for the
display
Auto receive, beeper tone,
illumination, and display are disabled.
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E-69
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