Operation Guide 5110
E-20
• Signal reception may not be possible at the distances that are further than those
noted below during certain times of the year or day. Radio interference also may
cause problems with reception.
Mainfl
(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)
• Even when the watch is within the reception range of the transmitter, signal
reception will be impossible if the signal is blocked by mountains or other
geological formations between the watch and signal source.
• Signal reception is affected by weather, atmospheric conditions, and seasonal
changes.
• As of December 2013, 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.
E-21
About Auto Receive
The watch receives the time calibration signal automatically up to six times a day (fi
times for the Chinese calibration signal). When any auto receive is successful,
remaining auto receive operations are not performed. The reception schedule
(calibration times) depends on your currently selected Home City, and whether
standard time or Daylight Saving Time is selected for your Home City.
Your Home City
Auto Receive Start Times
123456
LON
LIS
Standard Time
Daylight Saving Time
1:00 am
2:00 am
2:00 am
3:00 am
3:00 am
4:00 am
4:00 am
5:00 am
5:00 am
Midnight
*
Midnight
*
1:00 am*
PAR
BER
MAD
ROM
STO
Standard Time
Daylight Saving Time
2:00 am
3:00 am
3:00 am
4:00 am
4:00 am
5:00 am
5:00 am
Midnight
*
Midnight
*
1:00 am*
1:00 am*
2:00 am*
ATH Standard Time
Daylight Saving Time
3:00 am
4:00 am
4:00 am
5:00 am
5:00 am
Midnight
*
Midnight
*
1:00 am*
1:00 am*
2:00 am*
2:00 am*
3:00 am*
MOW Standard Time
Daylight Saving Time
4:00 am
5:00 am
5:00 am
Midnight
*
Midnight
*
1:00 am*
1:00 am*
2:00 am*
2:00 am*
3:00 am*
3:00 am*
4:00 am*
E-22
Your Home City
Auto Receive Start Times
123456
HKG
BJS
Standard Time
1:00 am 2:00 am 3:00 am 4:00 am 5:00 am
TYO
TPE
SEL
Standard Time
Midnight 1:00 am 2:00 am 3:00 am 4:00 am 5:00 am
HNL
ANC
LAX
DEN
CHI
NYC
YVR
YEA
MEX
MIA
YTO
YHZ
YYT
Standard Time and
Daylight Saving Time
Midnight 1:00 am 2:00 am 3:00 am 4:00 am 5:00 am
*Next day
E-23
Note
• When a calibration time is reached, the watch will receive the calibration signal only
if it is in either the Timekeeping Mode or World Time Mode. Reception is not
performed if a calibration time is reached while you are confi
• Auto receive of the calibration signal is designed to be performed early in the
morning, while you sleep (provided that the Timekeeping Mode time is set
correctly). Before going to bed for the night, remove the watch from your wrist, and
put it in a location where it can receive the signal easily.
• The watch receives the calibration signal for two to 14 minutes everyday when the
time in the Timekeeping Mode reaches a calibration time. Do not perform any
button operation within 14 minutes before or after the calibration times. Doing so
can interfere with correct calibration.
• Remember that reception of the calibration signal depends on the current time in
your Home City, as kept in the Timekeeping Mode.
E-24
To perform manual receive
1.
Place the watch on a stable surface so its 12 o’clock
side is facing towards a window (page E-15).
2. In the Timekeeping Mode, hold down
A
for about two
seconds until the watch beeps.
3. The digital display will go blank, and the left dial hand
will move to
R
(
READY
). This indicates that the watch
is getting ready for time calibration signal reception.
• See the information under “Signal Reception
Troubleshooting” (page E-27) if you experience
problems.
• The left dial hand will move to
W
(
WORK
) and stay
there while actual reception is in progress.
• If signal reception is unstable during reception, the left
dial hand may move between
W
(
WORK
) and
R
(
READY
).
• The hour and minute hands continue to keep time
normally.
W (WORK)
R (READY)
Receiving
E-25
• Time calibration signal reception 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 operations or move the watch during this time.
• When a signal receive operation is successful,
GET
appears on the upper display and the lower display
shows the time and date of the successful operation.
The watch will adjust its time setting in accordance
with the information provided by the signal.
• The watch will return to the Timekeeping Mode if you
press
A
or if you do not perform any operation for
about one or two minutes.
•
ERR
will appear on the upper display if the receive
operation is not successful. The watch will not adjust
its time setting in this case. Press
A
to return to the
Timekeeping Mode.
Receive successful
Receive failed
E-26
Note
• To interrupt a receive operation and return to the Timekeeping Mode, press any
button.
To check the latest signal reception results
In the Timekeeping Mode, press
A
to view the last successful receive time and date.
Press
A
again to return to the previous screen.
Date Hour : Minutes
E-27
Signal Reception Troubleshooting
Check the following points whenever you experience problems with signal reception.
Problem Probable Cause What you should do
I can’t receive
a time
calibration
signal.
• You performed some button
operation during auto receive.
• The watch is not in the Timekeeping
Mode or World Time Mode.
• The watch is in a location where the
signal cannot be received for some
reason.
• A countdown timer operation is in
progress.
• Radio interference is often present
during the day time, which can
interfere with signal reception.
• Perform manual receive at night or
wait until the next auto receive
operation is performed.
• Enter the Timekeeping Mode or
World Time Mode and try again.
• Enter the Countdown Timer Mode
and stop the countdown. (page
E-36)
• Check to make sure the watch is in
a location where it can receive the
signal (page E-15).
E-28
Problem Probable Cause What you should do
The time
setting is
incorrect
following
signal
reception.
• If the time is one hour off, the DST
setting may be incorrect.
• The Home City code setting is not
correct for the area where you are
using the watch.
• The home positions of the hands are
off.
• Change the DST setting to Auto DST
(page E-63).
• Select the correct Home City code
(page E-12).
• Enter the home position adjustment
mode and adjust the home
positions (page E-64).
• For further information, see “Important!” (page E-15) and “Radio-controlled Atomic
Timekeeping Precautions” (page E-69).
E-29
World Time
World Time digitally displays the current time in one of
48 cities (29 time zones) around the world. A simple
operation swaps your Home City with the currently
selected World Time City.
• When you enter the World Time Mode, the current
month and day of the World Time City appear fi
After about one second, the current time appears.
• The times kept in the World Time Mode are
synchronized with the time being kept in the
Timekeeping Mode. If you feel that there is an error in
any World Time Mode time, check to make sure you
have the correct city selected as your Home City. Also
check to make sure that the current time as shown in
the Timekeeping Mode is correct.
Current time in
World Time City
Currently selected
World Time City
