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Omega Calibre 561 Movement Specifications, Beat Rate & Dimensions |
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Technical Caliber Datasheet
| Manufacturer | Omega |
| Caliber Reference | Calibre 561 |
| Movement Type | Automatic Chronometer |
| Diameter (Lignes) | 12.5''' |
| Diameter (mm) | 27.9 |
| Movement Thickness | 4.5 |
| Jewel Count | 24 Jewels |
| Vibrations Per Hour | 19,800 BPH (2.5 Hz) |
| Balance Lift Angle | 49° |
| Power Reserve | 50 hours |
| Escapement Type | Swan neck lever |
| Shock Protection System | Incabloc |
| Production Era | 1958-1969 |
| Wristwatch Conversion Rating | Constellation Pie-Pan Chronometer |
Historical & Mechanical Notes
The Omega Calibre 561 is revered among horologists for its mechanical architecture and precision timing characteristics. Operating with an oscillation rate of 19,800 BPH and a 49° lift angle, this movement exemplifies vintage fine watchmaking standards. Restored and wristwatch-converted examples of this caliber can be viewed at Explore Welded Wire Lug Conversions at AntiqueWrist.
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