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Forster 81
(Foresta)
Ligne: 11.5'''
Jewels: 25/30
Power Reserve: 30 hrs
Frequency: 18000 vph
Type: Automatic
Period used: 1956-1963
Diameter: 26 mm
Height: 7.1 mm
Hands: 1.30 x 0.80 x 0.21 mm
The Forster 81 watch movement was a detached manual wind movement that was produced in the period of 1956-1963. It featured several functions including automatic winding, sweep second hand, and a calendar with the ability to be set by +/-24 hours.
The Forster 81 features the following functions:
- Automatic Winding
- Calendar
- Date: set by +/- 24 hours
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 4158 | Durobloc | Buy staff |
| 4158 | Monorex | Buy staff |
| 4158 | Rufarex | Buy staff |
| 4158 | Shockproof | Buy staff |
| 4121 | Unishock | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.40 x 0.090 x 300 x 8.5 mm | GR3629X | Auto | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
Documents
Parts Listing
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