Operation Guide 4791
2
About Auto Receive
The watch receives the time calibration signal automatically up to six times a day.
When any auto receive is successful, the remaining auto receive operations are not
performed. The reception schedule (calibration times) depends on the currently
selected GMT differential, and whether standard time or Daylight Saving Time is
selected for it.
GMT Differential
Auto Receive Start Times
1
2
3
4
5
6
GMT +0 Standard Time
1:00 am 2:00 am 3:00 am 4:00 am 5:00 am Midnight
Daylight
2:00 am 3:00 am 4:00 am 5:00 am Midnight 1:00 am
Saving Time
next day
GMT +1 Standard Time
2:00 am 3:00 am 4:00 am 5:00 am Midnight 1:00 am
next day
Daylight
3:00 am 4:00 am 5:00 am Midnight 1:00 am 2:00 am
Saving Time
next day next day
GMT +2 Standard Time
3:00 am 4:00 am 5:00 am Midnight 1:00 am 2:00 am
next day next day
Daylight
4:00 am 5:00 am Midnight 1:00 am 2:00 am 3:00 am
Saving Time
next day next day next day
Note
•
The auto receive operation is performed only if the watch is in the Timekeeping
Mode when one of the calibration times is reached. It is not performed if a calibration
time is reached while you are configuring settings.
•
Auto receipt 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. Do not
perform 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.
To perform manual receive
1. Place the watch on a stable surface so its 12 o’clock
side is facing towards a window.
2. In any mode, hold down
A
for about two seconds until
the second hand moves to
READY
(
R
).
•
This indicates that the watch is getting ready to receive
the time calibration signal.
•
The second hand will move to
WORK
(
W
) and stay there
while actual reception is in progress.
•
The hour and minute hands continue to keep time
normally.
•
Time calibration signal reception takes from two to
seven minutes, but in some cases it can take up to 14
minutes. Take care that you do not perform any button
operations or move the watch during this time.
•
If reception is successful, the second hand will move to
Y
(
YES
). One or two minutes later, the hands will move
to the correct time.
WORK
READY
Y
N
Note
•
To interrupt a receive operation and return to the Timekeeping Mode, press any
button.
•
If reception is not successful, the second hand will move to
N
(
NO
). One or two
minutes later, the second hand will resume normal operation, without any
adjustment of the hand setting.
•
If the second hand is pointing to
Y
(
YES
) or
N
(
NO
), you can return to the
Timekeeping Mode by pressing any button.
Viewing the Latest Signal Reception Results
You can use the Receive Result Mode to check if signal reception was performed
correctly.
To check the latest signal reception results
Enter the Receive Result Mode.
•
If the watch was able to perform a successful signal
receive operation since midnight, the second hand will
move to
Y
(
YES
). If the watch has been unable to
receive any signal successfully, the second hand will
move to
N
(
NO
).
•
To return to the Timekeeping Mode, press
A
.
•
The current receive result is cleared when the first auto
receive operation is performed on the following day. This
means
Y
(
YES
) indicates successful signal reception
since the start of the current day.
•
If you have adjusted the time setting manually, the
second hand will indicate
N
(
NO
) here.
Y
N
Signal Reception Troubleshooting
Check the following points whenever you experience problems with signal reception.
•
You changed the time setting manually.
•
Manual signal reception failed for some
reason.
•
The watch was not in the Timekeeping
Mode, or you performed some button
operation during the auto receive operation.
•
Signal reception results are reset at
midnight each day.
•
The GMT differential setting is not
correct for the area where you are
using the watch.
The second
hand is
pointing at
N
(
NO
).
Time setting is
incorrect
following signal
reception.
•
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.
•
Select the correct GMT
differential.
What you should do
Problem
Probable Cause
•
For further information, see “Important!” under “Time Calibration Signal Reception”
and “Radio-controlled Timekeeping Precautions”.
Adjusting the Home Positions
If the time settings are wrong even after the time calibration signal is received
normally, use the following procedure to adjust their home positions.
To adjust the home positions
1. Enter the Home Position Adjustment Mode.
•
If the home position of the second hand currently is
correct, it will move to the 12 o’clock position.
•
The analog hands do not keep time during home
position adjustment.
2. Check the position of the second hand.
•
The second hand home position is correct if it is
pointing at 12 o’clock.
•
If the second hand is not pointing at 12 o’clock, it
means that its home position is off. If this happens,
press
B
to move the second hand clockwise in one-
second steps, until it points at 12 o’clock.
3. Press
A
to advance to hour and minute hand home
position adjustment.
12 o’clock
Correct second hand
home position
•
If current hour and minute hand alignment is correct,
they will both move to 12 o’clock.
4. Check the position of the hour and minute hands.
•
If the hour and minute hands are not pointing at 12
o’clock, it means that their home position is off. If this
happens, press
B
to move the hour and minute
hands clockwise in 10-second steps, until they point
at 12 o’clock.
5. Press
A
to exit home position adjustment.
•
This will cause the watch to return to the Timekeeping
Mode. The hour, minute and second hands will indicate
the current time.
•
Note that all button operations are disabled while the
hour and minute hands are moving.
•
After you complete the home position adjustment procedure, place the watch in a
location that allows good time calibration signal reception, and then perform a
manual receive operation. See “To perform manual receive” for more information.
Correct hour
and minute hand
home position
12 o’clock
Timekeeping
Use the Timekeeping Mode to set and view the current
time. This section also explains how to set the current time
manually.
•
If you become confused and lose your way during the
following procedures, simply put the watch down and do
not perform any button operation for two or three
minutes. This will cause the watch to enter the
Timekeeping Mode (indicated by normal one-second
movement of the second hand) automatically. After that,
you can try performing the manual setting procedure
again from the beginning.
Hour hand
Minute hand
Second hand
To adjust the time setting manually
1. In the Timekeeping Mode, hold down
A
for about five
seconds.
•
This operation causes the second hand to move to
AM
or
PM
in accordance with the current time setting. This is the
setting mode.
•
The hour and minute hands do not move in the setting
mode.
2. Press
B
to move the time setting forward by one minute.
•
Holding down
B
for about two seconds starts high-speed
hand movement. High-speed hand movement will continue
until the hands complete a 12-hour cycle, or until you stop
them by pressing
B
.
•
If you exit the setting mode after changing the time
setting, the second hand will restart timing from 12
o’clock (0 seconds) automatically.
•
The AM/PM setting will not change even if you move the
hour hand past 12 o’clock in step 2. Use step 3 below to
switch between AM and PM.
AM
PM
3. Press
A
to advance to AM/PM switching.
•
This will cause the second hand to perform one full rotation starting from its
current position (either
AM
or
PM
), and then stop at its original current position.
4. Press
B
to toggle the second hand between
AM
and
PM
.
5. Coordinating with a time signal on the radio or TV, press
A
to restart normal
timekeeping. The second hand will move to 12 o’clock (zero seconds) at the start of
timekeeping.
•
If you press
A
without changing the time setting (hour, minute, AM/PM), the second
hand will move to the current time position and timekeeping will resume from there.
•
This watch normally receives a time calibration signal late at night. However, if you
configure the wrong AM/PM setting in step 3 of the above procedure, the watch will
start signal reception automatically during the afternoon. Signal reception during the
day is not as good as nighttime reception, so a wrong AM/PM setting can cause
signal reception problems.
Reference
This section contains more detailed and technical information about watch operation.
It also contains important precautions and notes about the various features and
functions of this watch.
Auto Return Features
•
If you leave the watch in the Home Position Adjustment Mode and Receive Result
Mode for two or three minutes without performing any operation, it will return to the
Timekeeping Mode automatically.
•
If you do not perform any operation for about two or three minutes while a setting
mode is selected, the watch will exit the setting mode automatically.
High-speed Hand Movement
•
The
B
button is used to change the hand setting in various setting modes. In most
cases, holding down the
B
button will start high-speed movement of the applicable
hand(s).
•
High-speed movement of the hands will continue until it completes a 12-hour cycle,
or until you press any button to stop it.