20
1
Hour hand (Front)
2
Minute hand (Front)
3
Push-piece A: chronograph start/stop
4
Crown: setting the time and winding
5
Push-piece B: chronograph resetting
6
Hour hand (Back)
7
Minute hand (Back)
8
Chronograph seconds (Back)
9
Chronograph minutes (Back)
1
2
4
6
7
8
9
3
5