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Longines Calibre 12.68Z Movement Specifications, Beat Rate & Dimensions |
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Technical Caliber Datasheet
| Manufacturer | Longines |
| Caliber Reference | Calibre 12.68Z |
| Movement Type | Manual Workhorse |
| Diameter (Lignes) | 12''' |
| Diameter (mm) | 27.0 |
| Movement Thickness | 4.25 |
| Jewel Count | 15 Jewels |
| Vibrations Per Hour | 18,000 BPH (2.5 Hz) |
| Balance Lift Angle | 49° |
| Power Reserve | 40 hours |
| Escapement Type | High-grade Swiss lever |
| Shock Protection System | Fixed jewels |
| Production Era | 1929-1955 |
| Wristwatch Conversion Rating | Vintage military officer watches |
Historical & Mechanical Notes
The Longines Calibre 12.68Z is revered among horologists for its mechanical architecture and precision timing characteristics. Operating with an oscillation rate of 18,000 BPH and a 49° lift angle, this movement exemplifies vintage fine watchmaking standards.
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