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Tissot 431 Movement Specifications, Beat Rate & Dimensions |
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Technical Caliber Datasheet
| Manufacturer | Tissot |
| Caliber Reference | Tissot 431 |
| Movement Type | Manual |
| Diameter (Lignes) | — |
| Diameter (mm) | 28.2 mm |
| Height / Thickness | 5.55 mm |
| Jewel Count | 13 Jewels |
| Beat Rate / Frequency | 18,000 BPH |
| Lift Angle | 51° |
| Power Reserve | 38 hours |
| Escapement | Swiss Lever |
| Production Period | 1970 |
Historical & Mechanical Notes
The Tissot 431 is a celebrated example of vintage precision engineering. Featuring 13 jewels and operating at 18,000 BPH, surviving examples are prized by collectors and restorers. For authentic restored timepieces and bespoke pocket-to-wrist conversions, visit convert pocket watch to wristwatch.
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