IWC Schaffhausen Ingenieur Mode D'emploi page 27

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R E A D I N G T H E C H R O N O G R A P H
Chronograph seconds hand: The scale for the central chrono­
graph seconds hand runs around the edge of the dial.
Minute counter: The 30­minute scale with a slow jumping hand
is situated on the subdial at 12 o'clock. This hand makes two
complete revolutions in one hour.
Hour counter: The 12­hour scale with a continuous hand is
situated on the subdial at 9 o'clock.
U S I N G T H E C H R O N O G R A P H
Start: To start the chronograph, press the start/stop push­button.
Stop: To stop the chronograph, press the start/stop push­button
again.
Reset: Press the reset push­button. This will reset all the chrono­
graph hands to zero.
Aggregate timing: You can add stop times together by pressing
the start/stop push­button again after the first measurement
instead of the reset push­button.
I N G E N I E U R C H R O N O G R A P H