Filter
Top Products
Operation Guide 4798
2
• Signal reception may not be possible at the distances noted below during certain
times of the year or day. Radio interference also may 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.
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 Time Zone.
Note
• Auto receive is turned on whenever +0.0, +1.0, or +2.0 (+1.0, +2.0, or +3.0 while
DST is turned on) is selected as the Home Time Zone.
Your Time Zone
Auto Receive Start Times
1234 5 6
+0.0 Standard Time
1:00 am 2:00 am 3:00 am 4:00 am 5:00 am Midnight
(DST +1.0)
Daylight Saving
2:00 am 3:00 am 4:00 am 5:00 am Midnight 1:00 am*
Time
Standard Time
2:00 am 3:00 am 4:00 am 5:00 am Midnight 1:00 am*
Daylight Saving
3:00 am 4:00 am 5:00 am
Midnight
1:00 am* 2:00 am*
Time
+2.0 Standard Time
3:00 am 4:00 am 5:00 am
Midnight
1:00 am* 2:00 am*
(DST +3.0)
Daylight Saving
4:00 am 5:00 am
Midnight
1:00 am* 2:00 am* 3:00 am*
Time
+1.0
(DST +2.0)
*Next day
Note
• The auto receive operation is performed only if the watch is in the Timekeeping
Mode or Dual Time Mode when a calibration time is reached. It is not performed if a
calibration time is reached while an alarm is sounding or 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 14 minutes everyday when the
time in the Timekeeping Mode reaches each of the calibration times. Avoid
performing any button operation within 14 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.
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 the Timekeeping Mode, hold down A for about two
seconds until the watch beeps.
3.The second hand will move to R (READY) to indicate
that the watch is setting up for time calibration
reception.
• The second hand will move to W (WORK) 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 minute later, the hands will move to the
correct time.
W (WORK)
R (READY)
Y (YES)
N (NO)
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 minute 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.
To check the latest signal reception results
In the Timekeeping Mode, press A.
• 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).
• The watch will return to the Timekeeping Mode after five
seconds.
• 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 or date setting manually,
the second hand will indicate N (NO) here.
Y (YES)
N (NO)
Signal Reception Troubleshooting
Check the following points whenever you experience problems with signal reception.
• For further information, see “Important!” under “Time Calibration Signal Reception”
and “Radio-controlled Atomic Timekeeping Precautions”.
• You changed the time setting
manually.
•
You performed some button operation
during the auto receive operation.
• Signal reception results are reset
when the first auto receive
operation of the day is performed.
• The Home Time Zone 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 Home
Time Zone.
What you should doProblem Probable Cause
Stopwatch
You can use the stopwatch to measure elapsed time,
cumulative elapsed time, and lap times. You also can input
the distance of the course or a particular segment of the
course of the race you are watching. That distance is used
along with the elapsed time, cumulative elapsed time, or
lap time measured by the watch to calculate and display
the average speed for the course or segment.
• See “Average Speed” for more information.
• Never operate the stopwatch while operating any
motor vehicle or while riding a motorcycle. Doing so
is very dangerous and can cause an accident.
• Entering the Stopwatch Mode causes the second hand,
the stopwatch minute hand and stopwatch 1/20 second
hand to move to the 12 o’clock position.
Stopwatch 1/20 second hand
* This hand rotates and indicates
the second count during the
first 60 seconds.
Second hand
Stopwatch minute
hand
Stopwatch
1/100 second
• The display range of the stopwatch is 59 minutes, 59.99 seconds.
• The stopwatch continues to run, restarting from zero after it reaches its limit, until
you stop it.
• The stopwatch measurement operation continues even if you exit the Stopwatch
Mode.
• All of the operations in this section are performed in the Stopwatch Mode, which you
enter by pressing C.
To measure elapsed time
1. In the Stopwatch Mode, press B to start elapsed time
measurement.
2. Press B to stop elapsed time measurement.
• The stopwatch 1/20 second hand will rotate for the first
60 seconds of the measurement operation only. After
that, it will stop. Whenever you press B to stop a
measurement operation, this hand will move
automatically to the applicable 1/20 second position for
the elapsed time, as measured internally by the watch.
• Press A to reset the stopwatch to zero.
Second hand
Stopwatch
minute hand
Stopwatch 1/20
second hand
Stopwatch
1/100 second
To measure cumulative elapsed time
1. In the Stopwatch Mode, press B to start elapsed time measurement.
2. Press B to stop elapsed time measurement.
3. Press B again to restart elapsed time measurement.
4. Press B to stop elapsed time measurement.
• Repeat steps 3 and 4 as many times as required.
• Press A to reset the stopwatch to zero.
To measure lap times
1. In the Stopwatch Mode, press B to start an elapsed
time measurement operation.
2. Press A to display the current lap time.
• Each press of A displays the current lap time up to
that point.
• The lap time will remain displayed for about two
seconds.
• Pressing A to display the current lap time also will
start timing of the next lap. This means that the
stopwatch does not maintain the total elapsed time or
total cumulative time in this case.
• The stopwatch will continue to time the next lap
internally, even while the current lap time is displayed.
3. Press B to stop the stopwatch.
• This will cause the final lap time to appear on the
display.
• Press A to reset the stopwatch.
Second hand
Stopwatch
minute hand
Stopwatch 1/20
second hand
Stopwatch
1/100 second
Average Speed
You also can input the distance of the course or a particular segment of the course of
the race you are watching. That distance is used along with the elapsed time,
cumulative elapsed time, or lap time measured by the watch to calculate and display
the average speed for the course or segment.
The average speed that appears for an elapsed time, cumulative elapsed time, or lap
time is calculated based on the times described below.
Elapsed time: Time from the point the stopwatch operation is started up until it was
stopped.
Cumulative elapsed time: Total time from the point the cumulative elapsed time
operation is started up until it was stopped. Does not include any time when the
stopwatch operation was paused.
Lap time: Time of each particular lap.
• Never operate the stopwatch while operating any motor vehicle or while riding
a motorcycle. Doing so is very dangerous and can cause an accident.
• For information about inputting a distance, see “To input a course or section
distance”.