User manual

2
Operation Guide 5131 (OC)
Approximate Reception Ranges
Japanese Signals Chinese Signal
Fukushima
500 kilometers
1,000 kilometers
Fukuoka/Saga
1,500 kilometers
Changchun500 kilometers
Beijing
Shangqiu
Shanghai
Chengdu
Hong Kong
UK and German Signals North American Signal
Anthorn
500 kilometers
1,500 kilometers
Mainflingen
The Anthorn signal is receivable
within this area.
2,000 miles
(3,000 kilometers)
600 miles
(1,000 kilometers)
Fort Collins
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
influence of the conditions listed above 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.
Mainflingen (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 November 2009, 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.
To get ready for a receive operation
Confirm that the watch is in the Timekeeping Mode. If it isn’t, hold down 1. C at least two seconds to
enter the Timekeeping Mode.
Place the watch in a location where signal reception is good.2.
12 o’clock
or
Position the watch as shown in the nearby illustration, •
with 12 o’clock pointed towards a window. 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.
Signal reception may be difficult or even impossible under the conditions described below. •
Inside or among
buildings
Inside a vehicle Near household
appliances,
office
equipment, or a
mobile phone
Near a
construction
site, airport, or
other sources of
electrical noise
Near high-
tension power
lines
Among
or behind
mountains
What you should do next depends on whether you are using Auto Receive or Manual Receive.3.
Auto Receive: Leave the watch over night in the location you selected in step 2. See “Auto Receive” •
for details.
Manual Receive: Perform the operation under “To perform manual receive”. •
Auto Receive
With Auto Receive, the watch performs the receive operation each day automatically up to six times (up •
to five times for the Chinese calibration signal) between the hours of midnight and 5 a.m. (according
to the Timekeeping Mode time). When any receive operation is successful, none of the other receive
operations for that day are performed.
When a calibration time is reached, the watch will perform the receive operation only if it is in the •
Timekeeping Mode or World Time Mode. The receive operation is not performed if a calibration time is
reached while you are configuring settings.
To perform manual receive
In the Timekeeping Mode, keep 1. A depressed (for about two seconds) as the
x Second Hand goes
through the following sequence.
Moves to • YES (or Y for some models) or NO (N) to indicate the last signal reception result, then to
READY (R).
The 2.
x Second Hand indicates the operations the watch is currently performing.
When the x Second Hand is
pointed here:
It means this:
READY (R) Watch is setting up for reception.
WORK (W) Reception is in progress.
YES (Y) Reception was completed successfully.
NO (N) Reception failed for some reason.
If signal reception is unstable, the • x Second Hand may move between
WORK (W) and READY (R).
The receive operation is complete when the 3.
x Second Hand moves to YES
(Y) or NO (N) for about five seconds, and then resumes regular timekeeping.
You can return to the Timekeeping Mode manually by pressing • A while
the
x Second Hand is pointing to YES (Y) or NO (N).
When the receive operation is successful, the watch adjusts the time •
setting accordingly. It does not adjust the setting if the operation failed.
Note
To interrupt a receive operation and return to the Timekeeping Mode, •
press any button.
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To check the result of the latest receive operation
In the Timekeeping Mode, press A.
The •
x Second Hand will move to YES (Y) for five seconds if the latest
receive operation was successful, or NO (N) if it was not. After that, regular
timekeeping will resume.
You can return to the Timekeeping Mode manually by pressing • A while the
x Second Hand is pointing to YES (Y) or NO (N).
Note
The •
x Second Hand will indicate NO (N) if you have adjusted the time or
date setting manually since the latest receive operation.
Radio-controlled Atomic Timekeeping Precautions
Strong electrostatic charge can result in the wrong time setting. •
Even if a receive operation is successful, certain conditions can cause the time setting to be off by up •
to one second.
The watch is designed to update the date and day of the week automatically for the period January •
1, 2000 to December 31, 2099. Updating of the date by signal reception will no longer be performed
starting from January 1, 2100.
If you are in an area where signal reception is not possible, the watch keeps time with the precision •
noted in “Specifications”.
The receive operation is disabled under any of the following conditions. •
While power is at Level 2 or lower −
While the watch is in the power recovery mode −
When the watch is in the function sleep state (power saving) −
While a countdown time operation is in progress −
A receive operation is cancelled if an alarm sounds while it is being performed. •
Mode Reference Guide
Your watch has three “modes”. The mode you should select depends on what you want to do.
To do this: Enter this mode:
View the current time in your Home City and in one of 29 other cities around •
the globe
View the current date in the Home City •
Configure Home City and daylight saving time (DST) settings •
Perform a time calibration receive operation •
Configure time and date settings manually •
Timekeeping Mode
Use the countdown timer Countdown Timer Mode
Use the stopwatch to measure elapsed time Stopwatch Mode
View the current time in one of 29 cities (time zones) around the globe World Time Mode
Set an alarm time Alarm Mode
Selecting a Mode
With this watch, everything starts from the Timekeeping Mode.
To determine the watch’s current mode
Check the position of the
v Left Dial Hand as shown under “To select a mode”.
To return to the Timekeeping Mode from any other mode
Except while the watch is performing auto hand home position correction, hold
down C at least two seconds.
To select a mode
Press C to cycle between the modes as shown below. The
v Left Dial Hand
indicates the currently selected mode.
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Timekeeping Mode Countdown Timer Mode
Alarm Mode
Stopwatch Mode
World Time Mode
The hand indicates the day of
the week (SU, MO, TU, WE, TH,
FR, SA).
The hand moves to TR and then
indicates the countdown timer
minutes.
The hand points to AL.
The hand moves to ST and then
indicates the stopwatch 1/20-
second count.
The hand points to STD or DST.
C
Timekeeping
Use the Timekeeping Mode to view the current time and date. To enter the Timekeeping Mode from any
other mode, hold down C at least two seconds.
Hand Functions
z Hour Hand
x Second Hand
c Minute Hand
v Left Dial Hand: Indicates the day of the week.
b Lower Dial Hand: Indicates the current hour in the Home City time in
24-hour format.
n Right Dial Hands:
Indicate the current time in the World Time City in 24-hour format.
m Day
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