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Important!
Keep the watch in an area normally exposed to bright light when storing it for long periods. This helps
to ensure that power does not run down.
Storing the watch for long periods in an area where there is no light or wearing it in such a way that it is
blocked from exposure to light can cause power to run down. Make sure that the watch is exposed to
bright light whenever possible.
Power Levels
You can get an idea of the watch's power level by observing the movement of
the x Second Hand.
If the x Second Hand is moving normally at one-second intervals, power is
at Level 1.
If the x Second Hand is moving at two-second intervals, power is at Level
2, which is quite low. Expose the watch to light as soon as possible so it
can charge.
Level Hand Movement
1
Normal
x x Second Hand moves at two-second
2
intervals.
Moves at two-second
v v Day changes to 1 (home position).
intervals.
x x Second Hand stopped.
z z Hour Hand and c c Minute Hand
3
stopped at 12 o'clock.
E-8
Power Saving
Power Saving enters a sleep state automatically whenever the watch is left for a certain period in an area
where it is dark. The table below shows how watch functions are affected by Power Saving.
There actually are two sleep state levels: "second hand sleep" and "function sleep".
Elapsed Time in Dark
Operation
x x Second Hand only stopped at 12 o'clock, all other functions enabled
60 to 70 minutes (second hand sleep)
All functions, including analog timekeeping, disabled
6 or 7 days (function sleep)
Internal timekeeping maintained
The watch will not enter a sleep state between 6:00 AM and 9:59 PM. If the watch is already in a sleep
state when 6:00 AM arrives, however, it will remain in the sleep state.
To recover from the sleep state
Move the watch to a well-lit area or press any button.
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Approximate Reception Ranges
UK and German Signals
Anthorn
500 kilometers
1,500 kilometers
The Anthorn signal is
receivable within this area.
Mainfl ingen
Japanese Signals
Fukushima
500 kilometers
Fukuoka/Saga
1,000 kilometers
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To get ready for a receive operation
1.
Check to make sure the watch is in the regular timekeeping mode. If it isn't, hold down
seconds to enter the regular timekeeping mode.
2.
The antenna of this watch is located on its 12 o'clock side. Position the watch with 12 o'clock facing
towards a window as shown in the nearby illustration. Make sure there are no metal objects nearby.
Signal reception normally is better at night.
The receive operation takes from two to seven minutes, but in some cases it can take as long as
14 minutes. Take care that you do not perform any button operation or move the watch during this
time.
E-14
Operation Guide 5063 (OC)
Function Status
All functions enabled
Time calibration signal reception
disabled
All functions disabled
North American Signal
2,000 miles
(3,000 kilometers)
600 miles
(1,000 kilometers)
Fort Collins
Chinese Signal
500 kilometers
Changchun
Beijing
Shangqiu
Shanghai
Chengdu
Hong Kong
1,500 kilometers
C at least two
12 o'clock
or
When power drops to Level 3, all functions will be disabled but the watch will continue to keep time
internally for about one week. If you recharge the battery suffi ciently during this period, the analog
hands will move automatically to the correct setting and regular timekeeping will resume. After one
week, all settings (including timekeeping) will be cleared. Recharging the battery will reset all settings
to their initial factory defaults.
Charging Times
Daily Operation
Exposure Level (Brightness)
Outdoor sunlight (50,000 lux)
Window sunlight (10,000 lux)
Window sunlight on cloudy day (5,000 lux)
Indoor fl uorescent lighting (500 lux)
*
1 Approximate exposure each day to generate power for normal daily operation
*
2 Approximate exposure to take power up one level
The above times are for reference only. Actual times depend on lighting conditions.
For details about the operating time and daily operating conditions, see the "Power Supply" section of
the Specifi cations (page E-40).
Radio Controlled Atomic Timekeeping
This watch receives a time calibration signal and updates its time setting accordingly. However, when
using the watch outside of areas covered by time calibration signals, you will have to adjust the settings
manually as required. See "Confi guring Current Time and Date Settings Manually" (page E-24) for more
information.
This section explains how the watch updates its time settings when the city code selected as the Home
City is in Japan, North America, Europe, or China, and is one that supports time calibration signal
reception.
If your Home City Code setting is this:
LONDON (LON), PARIS (PAR), ATHENS (ATH)
HONG KONG (HKG)
TOKYO (TYO)
HONOLULU (HNL), ANCHORAGE (ANC), LOS ANGELES (LAX),
DENVER (DEN), CHICAGO (CHI), NEW YORK (NYC)
Important!
The areas covered by HONOLULU (HNL) and ANCHORAGE (ANC) are quite far from the calibration
signal transmitters, so certain conditions may cause reception problems.
When HONOLULU (HNL) or HONG KONG (HKG) is selected as the Home City, only the time and date
are adjusted according to the time calibration signal. You need to switch manually between standard
time and daylight saving time (DST) if required. See "To confi gure Home City settings" (page E-21) for
information about how to do this.
Even when the watch is within range of a transmitter, signal reception may be impossible due to the
effects of geographic contours, structures, weather, the time of year, the time of day, radio interference,
etc. The signal becomes weaker at distances of approximately 500 kilometers, which means that the
infl uence of the above conditions becomes even greater.
Signal reception may not be possible at the distances noted below during certain times of the year or
day. Radio interference may also cause problems with reception.
−
Mainfl ingen (Germany) or Anthorn (England) transmitters: 500 kilometers (310 miles)
−
Fort Collins (United States) transmitter: 600 miles (1,000 kilometers)
−
Fukushima or Fukuoka/Saga (Japan) transmitters: 500 kilometers (310 miles)
−
Shangqiu (China) transmitter: 500 kilometers (310 miles)
As of January 2010, China does not use Daylight Saving Time (DST). If China does go to the Daylight
Saving Time system in the future, some functions of this watch may no longer operate correctly.
Using this watch in a country covered by a time calibration signal that is different from the countries it
supports may result in incorrect time indication due to local application of summer time, etc.
Signal reception may be diffi cult or even impossible under the conditions described below.
Inside or among
Inside a vehicle
Near household
buildings
appliances,
offi ce equipment,
or a mobile
phone
3.
What you should do next depends on whether you are using Auto Receive or Manual Receive.
Auto Receive: Leave the watch over night in the location you selected in step 2. See "Auto Receive"
on page E-15 for details.
Manual Receive: Perform the operation under "To perform manual receive" on page E-16.
Auto Receive
With Auto Receive, the watch performs the receive operation each day automatically up to six times (up
to fi ve times for the Chinese calibration signal) between the hours of midnight and 5 a.m. (according to
the Home City time). When any receive operation is successful, none of the other receive operations for
that day are performed.
The receive operation is not performed if a calibration time is reached while you are confi guring
settings.
Level Change *2
Level 3
Level 2
*1
8 minutes
2 hours
30 minutes
6 hours
48 minutes
9 hours
8 hours
101 hours
The watch can receive the signal from
the transmitter located here:
Anthorn (England), Mainfl ingen (Germany)
Shangqiu City (China)
Fukushima (Japan), Fukuoka/Saga (Japan)
Fort Collins, Colorado (United States)
Near a
Near
Among or behind
construction
high-tension
mountains
site, airport, or
power lines
other sources of
electrical noise
Level 1
25 hours
92 hours
– – –
– – –
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E-11
E-13
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