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General 820B
(Helvetia)
Ligne: 8.75'''
Jewels: 17
Power Reserve: 41 hrs
Frequency: 21600 vph
Type: Manual Wind
Period used: ~1975
Diameter: 19.7 mm
Height: 4.6 mm
Hands: 1.20 x 0.70 x 0.20 mm
Base: Fontainemelon 21
The General 820B is a manual wind mechanical watch movement that includes a sweep second function, as well as a day and date display. The date can be set by changing the time between 21:20 and 24:00 hours. This movement was commonly used during the period of approximately 1975.
The General 820B features the following functions:
- Date: set by changing 21:20-24h
- Day
- Day and Date Display
- Manual Winding
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
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Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.40 x 0.085 x 7.5 mm | 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) |
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Documents
Parts Listing
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