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To Measure Split Time
1) Press
ࠗA button to start/stop Chronograph.
2) Press
ࠗB button while Chronograph is counting.
Split time will appear for 10 seconds.
• “SPL” will flash when Split Time is shown.
• EL light will turn ON for 4 seconds when
ࠗB button
is pressed.
• Press
ࠗB button when counting is stopped to
reset the Chronograph.
* If switched to another mode while Chronograph
is running and then returned to Chronograph
mode, the watch will show time measurement
going on at time of mode switching. (If switched
while Split Time is shown, the watch will return to
Chronograph running mode.) However, if
Chronograph counting has exceeded 24 hours,
the watch will return to Chronograph reset mode.
F Using Race Timer (Cal. C440)
• Race Timer can be set to 15 different durations
of countdown in 60, 55, 50, 45, 40, 35, 30, 25, 20,
15, 10, 6, 5, 3 and 1 minute. Use this function by
setting to one of these countdown lengths as
desired.
• When Race Timer countdown is finished, Time-up
signal will sound for 5 seconds and the watch will
be automatically set to Chronograph mode (Auto-
Chrono) and start counting from 00 hour 00 minute
00 second.
To Set Race Timer
Press
ࠗB button in Race Timer mode.
Length of time countdown will change
15 times starting from 60 minutes to
1 minute. Set Race Timer to desired
length. Press and hold
ࠗB button for
rapid advancement.
To Use Race Timer
1) Press
ࠗA button in Race Timer
mode. Timer starts countdown from the time set.
2) Press
ࠗA button stop/start countdown.
3) Press
ࠗB button when countdown is stopped.
Race Timer display returns to initial setting.
4) If
ࠗB button is pressed while countdown is
continuing Race Timer returns to initial setting
and automatically restarts countdown.
5) When Race Timer countdown is finished, Time-
Up signal will sound for five seconds and the
watch will be automatically set to Chronograph
mode (Auto-Chrono) and start counting from 00
hour 00 minute 00 second.
• Buzzer will sound to mark remaining time at 10,
5, 3, 1 minute and 50, 40, 30, 20, 10, 5, 4, 3, 2, 1
second.
Auto-Chrono Measurement
• When Race Timer countdown is finished, Time-
Up signal will sound and the watch will be
automatically set to the Chronograph running
mode (Auto-Chrono).
• Auto-Chrono will start counting from 00 hour 00
minute 00 second.
Using Auto-Chrono
1) To stop Auto-Chrono, press
ࠗA button while Auto-
Chrono is running. To restart Auto-Chrono, press
ࠗA button while Auto-Chrono is stopped.
2) To switch to Race Timer running mode, press
ࠗB
button while Auto-Chrono is running.
Display after switching to Race Time/Auto-Chrono
* When Race Timer and Auto-Chrono are running,
microcomputer in the watch keeps repeating
Race-Timer countdown as shown in diagram. If
switched to Race Timer from Auto-Chrono, the
watch will show Race Timer countdown in
progress. (Countdown of microcomputer does not
stop even if Auto-Chrono is stopped.)
3) To return to initial Race Timer setting, press
ࠗB
button in Auto-Chrono stop mode
• The watch will return to Time display mode if
ࠗM
button is pressed in Race Timer or Auto-Chrono
mode.
• If switched to another mode from initial Race
timer setting, Race Timer running, Race Timer
stop, Auto-Chrono running or Auto-Chrono stop
mode and then reset to Race Timer, function will
return to the mode set at the time of switching.
However, if Auto-Chrono counting has exceeded
24 hours, the watch will return to initial Race
Timer setting Mode.