Caption
A-B-C
Screw-lock winding-crown (3 positions)
1.
Hours hand
2.
Minutes hand
3.
Seconds hand
4.
Chronograph minutes hands. The chronograph minutes
display is of the trailing variety (regular sweep of the
hand with no jump at the end of the elapsed minute)
5.
Chronograph seconds hand. This hand advances in 1/8th
of a second jumps (28,800 vph)
6.
Date window (large date)
7. and 8. Chronograph pushers
Description of various handling operations
(Using the winding-crown and chronograph pushers)
Position A Winding-crown unlocked and winding-stem fully
pushed in. Winding the watch by rotating the crown
clockwise.
Position B Winding-stem in an intermediate position. Fast date
adjustment by rotating the crown counter-clockwise
Position C Winding-stem entirely pulled out. Stop-seconds
(movement at a halt) and time-setting (hours, min-
utes) by rotating the crown in both directions
Pusher 7
Starting the chronograph (first press)
Stopping the chronograph (second press)
Potential new start (third press)
Pusher 8
Zero-resetting of the two chronograph hands after the
chronograph has stopped
PDR 4024 (Flyback) : stopping the chronograph, reset-
ting the two hands and instant restarting (by releasing
the pusher)
8