iwc DA VINCI CHRONOGRAPH CERAMIC Mode D'emploi page 21

Reading the chronograph 18 | 19
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 standard 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 re-
set/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 re-
leased.
Stop: To stop the running chronograph, press the start/stop button again.
Reset: Depress the reset/flyback button fully as far as it will go. This will re-
set 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/fly-
back button.