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Arogno 121 Movement Specifications, Beat Rate & Dimensions |
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Technical Caliber Datasheet
| Manufacturer | Arogno |
| Caliber Reference | Arogno 121 |
| Movement Type | Manual |
| Diameter (Lignes) | — |
| Diameter (mm) | 23.7 mm |
| Height / Thickness | 4.15 mm |
| Jewel Count | 17 Jewels |
| Beat Rate / Frequency | 18,000 BPH |
| Lift Angle | 51° |
| Power Reserve | 38 hours |
| Escapement | Swiss Lever |
| Production Period | 1945 |
Historical & Mechanical Notes
The Arogno 121 is a celebrated example of vintage precision engineering. Featuring 17 jewels and operating at 18,000 BPH, surviving examples are prized by collectors and restorers. For further technical reference on vintage watch movements, consult the Wikipedia: balance wheel oscillation.
Restoration enquiries:
Other Arogno Movements
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