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Osco 55
Ligne: 12.75'''
Jewels: 17/21
Power Reserve: 41 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: 1969-1971
Diameter: 28.8 mm
Height: 3.7 mm
Hands: 1.50 x 0.90 x 0.22 mm
The Osco 55 watch movement, belonging to the 460/1460 - 360/1360 family, was produced from 1969 to 1971. It features a manual wind mechanism and a sweep second function. The date is set by adjusting the time between 20-24 hours. The movement also incorporates shock protection, sweep seconds, and a calendar.
The Osco 55 features the following functions:
- Calendar
- Date: set by changing 20-24h
- Manual Winding
- Shock Protection
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.20 x 0.130 x 300 x 9.5 mm | GR2988 | Manual | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) | |
|---|---|---|---|
| See More |
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
Documents
Parts Listing
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