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Baume & Mercier 12820
(Baume Mercier)
Ligne: 11.5'''
Jewels: 17/25
Power Reserve: 42 hrs
Frequency: 18000 vph
Type: Automatic
Period used: ~1970
Diameter: 26 mm
Height: 4.7 mm
Hands: 1.50 x 0.90 x 0.21 mm
The Baume & Mercier 12820 is a mechanical watch movement with an automatic winding system. It features a sweep second hand and a date function that can be adjusted by changing the time to the 20:40-24h mark. This movement was used around the period of 1970. The specific differences between the 2527 and other similar models (2522R, 2526, 2529) are not known.
The Baume & Mercier 12820 features the following functions:
- Automatic Winding
- Date (set by changing 20:40-24h)
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
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Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.20 x 0.115 x 400 x 11.5 mm | GR2966X | Auto | Buy mainspring |
| 1.20 x 0.120 x 350 x 11.0 mm | 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) |
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Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
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