IWC Schaffhausen DA VINCI 3764 Instrucciones De Manejo página 23

Reading the chronograph
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Chronograph seconds hand: The scale for the central chronograph
seconds hand runs around the edge of the dial.
Minute and hour counters: The subdial at 12 o'clock has two hands,
which run continuously and show the elapsed time on a 12-hour and a
60-minute scale. The hour and minute counters can be read like a stand ard
analogue time display. In other words, one revolution of the minute counter
is equal to 60 minutes, and one revolution of the hour counter is equal to
12 hours.
Using the chronograph
Start: To start the chronograph, press the start/stop button.
Flyback: You can start recording a new time immediately, even when the
chronograph is running. With the chronograph running, simply depress the
reset/flyback button fully as far as it will go. All three chronograph hands
are reset to zero, and a new measurement is started as soon as the button
is released.
Stop: To stop the running chronograph, press the start/stop button.
Reset: Depress the reset/flyback button fully as far as it will go. This will
reset all the chronograph hands to zero.
Aggregate time recording: You can add stop times together by pressing
the start/stop button again after the first measurement instead of the
reset/flyback button.