2
Operation Guide 5083 (OC)
Approximate Reception Ranges
Japanese Signal
Chinese Signal
Fukushima
500 kilometers
1,000 kilometers
Fukuoka/Saga
1,500 kilometers
Changchun
500 kilometers
Beijing
Shangqiu
Shanghai
Chengdu
Hong Kong
UK and German Signals
North American Signal
Anthorn
500 kilometers
1,500 kilometers
Mainfl ingen
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 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 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.
To get ready for a receive operation
Confi rm that the watch is in the Timekeeping Mode. If it isn’t, hold down
1.
C
for about two seconds to enter
the Timekeeping Mode.
The antenna of this watch is located on its 12 o’clock side. Position the watch with 12 o’clock facing towards
2.
a window as shown in the nearby illustration. Make sure there are no metal objects nearby.
12 o’clock
or
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 diffi cult or even impossible under
the conditions described below.
Inside or among
buildings
Inside a vehicle
Near household
appliances,
offi ce 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
fi ve 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 confi guring 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 fi ve seconds, and then resumes normal 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.
@
@
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 fi ve seconds if the latest receive
operation was successful, or
NO
(
N
) if it was not. After that, normal 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 “Specifi cations”.
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”)
−
A receive operation is cancelled if an alarm sounds while it is being performed.
Mode Reference Guide
Your watch has four “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
Confi gure Home City and daylight saving time (DST) settings
Perform a time calibration receive operation
Confi gure time and date settings manually
Timekeeping Mode
Use the stopwatch to measure elapsed time
Stopwatch Mode
Select one of 29 cities (time zones) around the world and view the current time there
Select daylight saving/summer time (DST) or standard time for a time zone
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
for about two seconds until the
x
Second Hand
returns to 12 o’clock.
To select a mode
Press
C
to cycle between the modes as shown below. The
v
Left Dial Hand
indicates the currently selected
mode.
Timekeeping Mode
Stopwatch Mode
The hand indicates the day of
the week (
SU
,
MO
,
TU
,
WE
,
TH
,
FR
,
SA
).
The hand points to
0
.
C
>
World Time Mode
The hand points to
STD
or
DST
.
Alarm Mode
The hand points to
ALM
.
Timekeeping
Use the Timekeeping Mode to view the current time and date. To enter the Timekeeping Mode from any other
mode, hold down
C
for about two seconds.
Hand Functions
z
z
Hour Hand
x
x
Second Hand
c
c
Minute Hand
v
v
Left Dial Hand:
Indicates the day of the week.
b
b
Right Dial Hands:
Indicate the current time in the World Time City in 24-hour
format.
n
n
Day
@
>
B
+
6
>
*
@