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Osco 65
Ligne: 10.5'''
Jewels: 15/17
Lift Angle: 52°
Power Reserve: 48 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1955
Diameter: 23.4 mm
Hands: 1.25 x 0.63 / 0.21 mm
The Osco 65 watch movement is a manual wind movement with sub-second functionality. It features additional functions such as day, date (set by pusher at 8:45h), month (set by pusher at 9:15h), and a calendar. The movement was widely used around 1955. Some differences exist between the 520C and 535, although specific details are not available.
The Osco 65 features the following functions:
- Calendar
- Date: set by pusher at 8:45h
- Day
- Manual Winding
- Month: set by pusher at 9:15h
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.50 x 0.095 x 340 x 9.5 mm | GR4114 | Manual | Buy mainspring |
| 1.50 x 0.100 x 340 x 9.5 mm | GR4124 | Manual | Buy mainspring |
| 1.50 x 0.100 x 320 x 9.5 mm | 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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