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Osco 56
Ligne: 11.5'''
Jewels: 17/21
Lift Angle: 53°
Power Reserve: 46 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: 1954-1970
Diameter: 26 mm
Height: 6.9 mm
Hands: 2.10 x 1.30 x 0.90 x 0.22 mm
Base: A. Schild 1475
The Osco 56 watch movement, produced from 1954 to 1970 with an estimated production quantity of around 149,000 units, underwent various detail modifications during its manufacturing period. This mechanical movement features multiple functions, including a manual-wind alarm, sweep second hand, and a date adjustment set by changing the time to 21:30-24h. Additionally, it is an automatic movement.
The Osco 56 features the following functions:
- Automatic Winding
- Date: set by changing 21:30-24h
- Manual-wind alarm
- Mechanical Movement
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
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Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.50 x 0.100 x 320 x 9.0 mm | GR4123 | Manual | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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Documents
Parts Listing
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