iwc Ingenieur Constant-Force Tourbillon Operating Instructions Manual page 7

1
3
Hour hand
1
Minute hand
2
Constant-force tourbillon
3
with seconds hand
I N G E N I E U R C O N S T A N T - F O R C E T O U R B I L L O N
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Moon phase display
Countdown display
Power reserve display
Screw-in crown
5
4
2
7
6
4
5
6
7