— 2 8 —
— 2 9 —
USING THE CHRONOGR APH
CROSSING TIME ZONES AND THE INTERNATIONAL DATE LINE WITH THE
INGENIEUR PERPETUAL CALENDAR DIGITAL DATE- MONTH
Start: To start the chronograph, press the start/stop push-button.
Flyback: You can start recording a new time immediately, even when the chronograph is running.
Simply depress the reset/flyback push-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 push-button is released.
Stop: To stop the running chronograph, press the start/stop push-button.
Reset: Depress the reset/flyback push-button fully, as far as it will go. This will reset all the chrono-
graph hands to zero.
Aggregate timing: You can add recorded times together by pressing the start/stop push-button again
after the first measurement instead of the reset/flyback push-button.
–11 –10 –9
–8
–7
–6
–5
–4 –3
–2
–1
0 +1
+2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12
INGENIEUR PERPETUAL CALENDAR DIGITAL DATE-MONTH
INGENIEUR PERPETUAL CALENDAR DIGITAL DATE- MONTH