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Operation Guide 2760 2761
2
• Proper signal reception can be difficult or even impossible under the conditions listed
below.
Inside or
among
buildings
Inside a
vehicle
Near a
construction
site, airport, or
other sources
of electrical
noise
Near high-
tension
power lines
Among or
behind
mountains
• Signal reception is normally better at night than during the day.
• 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.
Near
household
appliances,
office
equipment,
or a mobile
phone
• 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
Rugby
Mainflingen
1,500 kilometers
500 kilometers
• Under good reception conditions, signal reception is possible within a radius of
about 1,500 kilometers from a transmitter.
• At distances further than about 500 kilometers from a transmitter, signal reception
may not be possible during certain times of year or times of day. Radio interferance
may also cause problems with reception.
• See the information under “Signal Reception Troubleshooting” if you experience
problems with time calibration signal reception.
About Auto Receive
When auto receive is turned on, the watch automatically starts to receive the time
calibration signal when the digital time in the Timekeeping Mode reaches 0:00 a.m.,
1:00 a.m., 2:00 a.m., 3:00 a.m., and 4:00 a.m. each day (calibration times). The watch
will also perform an additional auto receive operation at 5:00 a.m. if none of the
regularly scheduled auto receive operations are successful.
Note
• Auto receive turns on automatically whenever you select +1.0 or +0.0 as your Home
Time Zone. For information about turning off auto receive, see “To select the
transmitter mode”.
• The auto receive operation is performed only if the watch is in the Timekeeping
Mode or Dual Time Mode when one of the calibration times is reached. It is not
performed if a calibration time is reached while an alarm is sounding, or while you
are configuring settings (while settings are flashing on the display).
• 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 easily receive the signal.
• When auto receive is turned on, 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 on
the digital display. 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.
• When two, three, four, or five receptions are successful, the watch uses the data of
the last reception for calibration. When only one reception is successful, the watch
uses the data of the successful reception.
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 1)
Strong
(Level 4)
• 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.
• The Level 4 receiving indicator remains on the display in all modes following
reception of the time calibration signal and calibration of the watch’s time setting.
The Level 4 receiving indicator is not displayed if signal reception was unsuccessful
or after manual adjustment of the current time setting.
• The Level 4 receiving indicator indicates that at least one of the calibration signal
receive operations was successful. Note, however, that the Level 4 receiving
indicator is cleared from the display at 3:00 a.m. each day.
To perform manual receive
1.Place the watch on a stable surface so its top (12
o’clock side) is facing towards a window.
2.While any screen other than the last signal screen is on
the display in the Timekeeping Mode, hold down B for
about two seconds until the watch beeps.
3.Release B and the current date or time will flash to
indicate that signal reception has started.
• When a receive operation starts, the second hand will
move at high speed to the 12 o’clock position where it
will stop until the receive operation is complete.
• 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.
• After signal reception is complete, the watch beeps and the display of the watch
changes to the last signal screen.
Note
• To interrupt a receive operation and return to the Timekeeping Mode, press B.
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Receiving indicator
• If the receive operation is unsuccessful, – – – – – – 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 B.
Signal Reception Troubleshooting
Check the following points whenever you experience problems with signal reception.
• Enter the Timekeeping Mode
and try again.
• Select +1.0 or +0.0 as your
Home Time Zone.
• Select the transmitter setting
appropriate for your current
location.
Cannot
perform
manual
receive.
• The watch is not in the Timekeeping
Mode.
• Your current Home Time Zone
setting is not one of the following:
+1.0 or + 0.0.
• The transmitter setting is incorrect.
What you should doProblem Probable Cause
Auto receive
is turned on,
but the Level
4 receiving
indicator
does not
appear on
the display.
Time setting
is incorrect
following
signal
reception.
• The transmitter setting is incorrect.
• You changed the time setting
manually.
•
The watch was not in the
Timekeeping or Dual Time Mode, or
you performed some button operation
during the auto receive operation.
• Even if receive is successful, the
Level 4 receiving indicator
disappears every day at 3 a.m.
• If the time is one hour off, the DST
setting may be incorrect.
•
The Home Time Zone setting is not
correct for the area where you are
using the watch.
• Select the transmitter setting
appropriate for your current
location.
• 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.
• Change the DST setting to
Auto DST.
• Select the correct Home
Time Zone.
• For further information, see “Important!” under “Time Calibration Signal Reception”
and “Radio-controlled Timekeeping Precautions”.
Stopwatch
The stopwatch lets you measure elapsed time, lap times,
split times, and two finishes. Stopwatch times are also
stored in memory.
• The display range of the stopwatch is 59 minutes, 59.99
seconds.
• All of the operations in this section are performed in the
Stopwatch Mode, which you enter by pressing C.
• Entering the Stopwatch Mode causes the second hand
and battery level dial hand to move to the 12 o’clock
position.
• In the Stopwatch Mode, the second hand shows the
seconds of the elapsed time measurement, the battery
level dial shows elapsed minutes, and the stopwatch
1/20 second dial shows elapsed 1/20 second.
Minutes
Seconds
1/100 second
Stopwatch 1/20
second dial
Second hand
Battery
level dial
Note
• “Lap time” is the time spent to cover a specific segment of a race, such as one lap
around a track. “Split time” is the time spent from the beginning of a race up to a
certain point.
• 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.
• The hand of the stopwatch 1/20 second dial revolves for the first minute of each
elapsed time operation. After that, it stops automatically at the 12 o’clock position. If
you exit the Stopwatch Mode while an elapsed time operation is in progress, the
1/20 second hand will revolve for the first minute after you re-enter the Stopwatch
Mode. When you stop an elapsed time measurement, the 1/20 second hand will
move automatically from the 12 o’clock position to the current 1/20 second count.
• For information about how stopwatch times are stored in memory, see “Memory
Management”.
• You can adjust the positions of the stopwatch 1/20 second dial and battery level dial
hands if they do not align exactly with the 12 o’clock position. See “Adjusting Dial
Hand Positions” for more information.
To measure elapsed time
1. Press B to start the stopwatch.
2. Press B again to stop the stopwatch.
• You can resume the measurement operation by pressing B.
3. Press A to clear the stopwatch to all zeros.