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Operation Guide 3719
• When within range of the applicable transmitter, this watch can receive either the
Germany (Mainflingen) or England (Rugby) time calibration signals. See
"Transmitters" for more information.
Reception Ranges
1,500 kilometers
Rugby
500 kilometers
• 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 Rugby (England) transmitters: 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.
• See the information under "Signal Reception Troubleshooting" if you experience
problems with time calibration signal reception.
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 your currently
selected Home Time Zone, and whether standard time or Daylight Saving Time is
selected for your Home Time Zone.
Your Home Time Zone
Auto Receive Start Times
1
2
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
GMT +1 Standard Time 2:00 am 3:00 am 4:00 am 5:00 am Midnight 1:00 am
Daylight
3:00 am 4:00 am 5:00 am Midnight 1:00 am 2:00 am
Saving Time
GMT +2 Standard Time 3:00 am 4:00 am 5:00 am Midnight 1:00 am 2:00 am
Daylight
4:00 am 5:00 am Midnight 1:00 am 2:00 am 3:00 am
Saving Time
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. 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 is actually the correct time.
To perform manual receive
1. Place the watch on a stable surface so its 9 o'clock side
is facing towards a window.
2. In any mode, hold down B for about two seconds until
the watch beeps.
3. When you release B, the second hand will move to
READY to indicate that the watch is setting up for time
calibration reception.
• The second hand will move to WORK and stay there
while actual reception is in progress.
READY
WORK
• 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. One or two minutes later, the hands will move to the
correct time.
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. 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 or N, you can return to the Timekeeping Mode by
pressing any button.
Mainflingen
3
4
5
6
next day
next day
next day next day
next day next day
next day next day next day
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. If the watch has been unable to receive any
signal successfully, the second hand will move to N.
• To return to the Timekeeping Mode, press B twice.
• The current receive result is cleared when the first auto
receive operation is performed on the following day. This
means Y indicates successful signal reception since the
start of the current day.
• Y continues to be indicated even if an attempt at manual
receive fails after auto receive is successful.
• If you adjust the time or date setting manually, the
second hand will move to N.
Signal Reception Troubleshooting
Check the following points whenever you experience problems with signal reception.
Problem
Probable Cause
• You changed the time setting
The second
hand is
manually.
• The watch was not in the
pointing at N.
Timekeeping Mode, or you performed
some button operation during the
auto receive operation.
• Signal reception results are reset at
midnight each day.
• The Home Time Zone setting is not
Time setting is
incorrect
correct for the area where you are
following signal
using the watch.
reception.
• For further information, see "Important!" under "Time Calibration Signal Reception"
and "Radio-controlled Timekeeping Precautions".
Adjusting the Home Positions
If the time and date 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.
12 o'clock
• If the home position of the second hand is currently
correct, it will move to the 12 o'clock position.
2. While in the Home Position Adjustment Mode, hold
down A for about five seconds. This will cause the
second hand to make one revolution and stop at its
current home position.
• The analog hands do not keep time during home
position adjustment.
3. Check the position of the second hand.
• The second hand home position is correct if it is
pointing at 12 o'clock.
Correct second hand
• If the second hand is not pointing at 12 o'clock, it
home position
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.
12 o'clock
4. Press A to advance to hour and minute hand home
position adjustment.
• If current hour and minute hand alignment is correct,
they will both move to 12 o'clock.
5. 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.
• You can change the hour and minute hand movement
Correct hour
direction to counterclockwise by pressing A. After
and minute hand
that, each press of B will move the hour and minute
home position
hands counterclockwise in 10-second steps.
6. Press A to advance to date home position adjustment.
• The date indicator will show
indicator
position is correct. Note that it can take up to 90
seconds before
7. Check the date indicator.
8. If the date indicator shows something other than
means that the date home position is off. If this
happens, press B to advance the date until
appears.
•
is located between 31 and 1.
9. Press A to exit home position adjustment.
• This causes the date to change to the current date, and
the hour and minute hands to move to the current time.
• Note that all button operations are disabled while the
Correct date home
date is changing, and the hour and minute hands are
position
moving.
• To return to the Timekeeping Mode, press B.
• 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.
What you should do
• 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 Home
Time Zone.
if the date home
appears.
, it
2
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