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- Watch Spare - Winding stem for Audemars Piguet calibre K2120/2

| Brand | Audemars Piguet |
|---|---|
| Calibre | AP K2120-2 |
| International reference | 401 |
| State | Fabricated WS |
| Caliber diameter | 28.00 mm |
| Caliber height | 3.05 mm |
| Frequency | 19'800 A/h |
| Power reserve | 40h |
| Ruby | 36 |