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- Rolex Cal. 650 - Screw for Barrel bridge, Train wheel bridge, Escape wheel bridge, Balance bridge 5801

| Brand | Rolex |
|---|---|
| Calibre | RX 650 |
| International reference | 5801 |
| State | Never used |
| Year of production | 1958 - 1978 |
| Caliber diameter | 20.80 mm |
| Caliber height | 1.80 mm |
| Frequency | 18'000 A/h |
| Lift | 52° |
| Ruby | 17 |