Operation Guide 3139/3456
E-29
World Time
The World Time Mode shows you the current time in 48
cities (29 time zones) around the world.
If the current time shown for a city is wrong, check
your Home City time settings and make the necessary
changes (page E-10).
All of the operations in this section are performed in
the World Time Mode, which you enter by pressing
C
(page E-6).
To view the time in another city
While in the World Time Mode, press
D
to scroll
eastward through the city codes (time zones).
For full information on city codes, see the “City Code
Table” at the back of this manual.
Timekeeping Mode time
Current time in
selected city
City code
UTC offset
E-28
Problem
Probable Cause
What you should do
Auto receive is
turned on, but the
Level 3 receiving
indicator does
not appear on the
display.
Even if receive is successful, the Level 3
receiving indicator disappears every day
when the first auto receive operation of
the day is performed.
Time data (hour, minutes, seconds) only
was received during the last receive
operation. The Level 3 receiving indicator
appears only when time data and date
data (year, month, day) are both received.
Perform manual signal
receive or wait until the
next auto signal receive
operation is performed.
Check to make sure the
watch is in a location
where it can receive the
signal (page E-14).
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.
Change the DST setting to
Auto DST (page E-45).
Select the correct Home
City code (page E-10).
For further information, see “Important!” (page E-14) and “Radio-controlled Atomic
Timekeeping Precautions” (page E-49).
E-27
Signal Reception Troubleshooting
Check the following points whenever you experience problems with calibration signal
reception.
Problem
Probable Cause
What you should do
Cannot perform
manual receive.
The watch is not in the Timekeeping Mode.
Your current Home City is not one of the
following city codes:
HNL
,
ANC
,
YVR
,
LAX
,
YEA
,
DEN
,
MEX
,
YWG
,
CHI
,
MIA
,
YTO
,
NYC
,
YHZ
,
YYT
,
LIS
,
LON
,
MAD
,
PAR
,
ROM
,
BER
,
STO
,
ATH
,
MOW
,
HKG
,
BJS
,
TPE
,
SEL
, and
TYO
.
The countdown timer is running.
Enter the Timekeeping
Mode and try again
(page E-24).
Select one of the cities to
the left as your Home City
(page E-10).
Stop the countdown timer
(page E-32) and try again.
Auto receive is
turned on, but the
Level 3 receiving
indicator does
not appear on the
display.
You changed the time setting manually.
The watch was not in the Timekeeping or
World Time Mode, or you performed some
button operation during the auto receive
operation.
Perform manual signal
receive or wait until the
next auto signal receive
operation is performed.
E-26
To display the Last Signal screen
In the Timekeeping Mode, press
D
to display the Last Signal screen (indicated by
). The Last Signal screen shows the date and time of the last successful time
calibration signal reception.
D
Home Time
(Hour : Minutes Seconds)
PM indicator
Receive time
DST indicator
Month – Day
Day of week
Current Time and Date Screen
Last Signal Screen
Receive date
Year
E-25
Calibration signal reception is disabled while a countdown timer operation is in
progress.
To turn auto receive on and off
1. In the Timekeeping Mode, press
D
to display the Last
Signal screen (page E-26).
2. Hold down
A
until the receiving indicator and current
auto receive setting (
or
) start to flash.
This is the setting screen.
Note that the setting screen will not appear if the
currently selected Home City is one that does not
support time calibration reception.
3. Press
D
to toggle auto receive on (
) and off
(
).
4. Press
A
to exit the setting screen.
For information about city codes that support signal receive, see “To specify your
Home City” (page E-10).
On/Off Status
E-24
To perform manual receive
1. Place the watch on a stable surface so its top
(12 o’clock side) is facing towards a window (page E-14).
2. In the Timekeeping Mode, hold down
D
for about two
seconds until
RC!
appears on the display.
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.
After signal reception is complete, the display of the
watch changes to the Last Signal screen (page E-26).
Note
To interrupt a receive operation and return to the Timekeeping Mode, press
D
.
If the receive operation is unsuccessful, the message
appears on
the display for about one or two minutes. After that, the watch returns to the
Timekeeping Mode.
You can also change from the Last Signal or
screen to the normal
timekeeping screen by pressing
D
.
Receiving indicator
E-23
Following reception of the time calibration signal and calibration of the watch’s time
setting, the Level 3 receiving indicator will remain on the display in all modes. The
Level 3 receiving indicator will not be displayed if signal reception was unsuccessful
or after you adjust the current time setting manually.
The Level 3 receiving indicator is displayed only when the watch is able to receive
both time and date data successfully. It does not appear when only time data is
received.
The Level 3 receiving indicator indicates that at least one of the auto calibration
signal receive operations was successful. Note, however, that the Level 3 receiving
indicator is cleared from the display when the first auto receive operation of the day
is performed.
E-22
About the Receiving Indicator
The receiving indicator shows the strength of the calibration signal being received.
For best reception, be sure to keep the watch in a location where signal strength is
strongest.
Receiving indicator
Weak
(Level 0)
Strong
(Level 3)
Even in an area where signal strength is strong, it takes about 10 seconds for signal
reception to stabilize enough for the receiving indicator to indicate signal strength.
Use the receiving indicator as a guide for checking signal strength and for finding
the best location for the watch during signal receive operations.
E-21
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 configuring settings.
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 seven minutes everyday when
the time in the Timekeeping Mode reaches each of the calibration times. Avoid
performing any button operation within seven minutes before or after any one of the
calibration times. Doing so can interfere with correct calibration.
Remember that reception of the calibration signal depends on the current time
in the Timekeeping Mode. The receive operation will be performed whenever the
display shows any one of the calibration times, regardless of whether or not the
displayed time actually is the correct time.
Calibration signal reception is disabled while a countdown timer operation is in
progress.
E-20
Your Home City
Auto Receive Start Times
1
2
3
4
5
6
ATH
Standard Time
3:00 am 4:00 am 5:00 am
Midnight
*
1:00 am
*
2:00 am
*
Daylight
Saving Time
4:00 am 5:00 am
Midnight
*
1:00 am
*
2:00 am
*
3:00 am
*
MOW
Standard Time
4:00 am 5:00 am
Midnight
*
1:00 am
*
2:00 am
*
3:00 am
*
Daylight
Saving Time
5:00 am
Midnight
*
1:00 am
*
2:00 am
*
3:00 am
*
4:00 am
*
HKG, BJS, TPE,
SEL, TYO
Standard Time Midnight 1:00 am 2:00 am 3:00 am 4:00 am 5:00 am
* Next day
