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Longines Calibre 13.33Z Movement Specifications, Beat Rate & Dimensions |
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Technical Caliber Datasheet
| Manufacturer | Longines |
| Caliber Reference | Calibre 13.33Z |
| Movement Type | Manual Chronograph |
| Diameter (Lignes) | 13''' |
| Diameter (mm) | 29.0 |
| Movement Thickness | 5.6 |
| Jewel Count | 17 Jewels |
| Vibrations Per Hour | 18,000 BPH (2.5 Hz) |
| Balance Lift Angle | 50° |
| Power Reserve | 40 hours |
| Escapement Type | Single push column wheel |
| Shock Protection System | High-grade steel chatons |
| Production Era | 1913-1936 |
| Wristwatch Conversion Rating | First dedicated wristwatch chronograph |
Historical & Mechanical Notes
The Longines Calibre 13.33Z is revered among horologists for its mechanical architecture and precision timing characteristics. Operating with an oscillation rate of 18,000 BPH and a 50° lift angle, this movement exemplifies vintage fine watchmaking standards.
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