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Bettlach 8420
(EB)
Ligne: 5.75'''
Jewels: 17
Power Reserve: 42 hrs
Frequency: 21600 vph
Type: Manual Wind
Period used: ~1965
Diameter: 13.25 mm
Height: 3.1 mm
Hands: 0.99 x 0.49 mm
The Bettlach 8420 watch movement features a Girocap combined setting for the escapement wheel, allowing for excellent precision. Its indirectly driven minute hand enables the integration of a significantly large balance, further enhancing accuracy. Produced as a result of a collaboration among Doxa, Ebel, Eberhard, Favre-Leuba, Girard-Perregaux, Juvenia, and Zodiac, this movement's equivalent calibres, Felsa 4035 and 4036, lack definitive information regarding their manufacturer. The Bettlach 8420 movement is a manual wind backwinder and was commonly utilized around 1965.
The Bettlach 8420 features the following functions:
- Manual wind backwinder
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
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Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.50 x 0.060 x 5.5 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
| Part Description | Reference # | Alternate | Buy |
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