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Bettlach 8480-74
(EB)
Ligne: 10.5'''
Jewels: 7
Power Reserve: 41 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1952
Diameter: 23.8 mm
Height: 4.15 mm
Hands: 1.50 x 0.80 / 0.18 mm
The Bettlach 8480-74 watch movement is a manual winding movement with a pin-lever escapement. It features a ratchet on the dial side and a crown mechanism with a rocker bar. The movement is designed with a 2-layer base plate. Differences between the 290 and 291 versions of the movement are not known. Its functions include sub seconds and the use of a pin lever. This movement was commonly used around the year 1952.
The Bettlach 8480-74 features the following functions:
- Manual Winding
- Pin lever
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 1930 | Ordinary/None | Buy staff |
| 4051 | Ordinary/None | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.50 x 0.110 x 300 x 9.0 mm | GR4149 | Manual | Buy mainspring |
| 1.50 x 0.105 x 280 x 9.0 mm | GR41332 | Manual | Buy mainspring |
| 1.50 x 0.110 x 260 x 9.0 mm | Manual | Buy mainspring |
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Parts Listing
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