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Bettlach 8420-74
(EB)
Ligne: 13'''
Jewels: 13/17
Lift Angle: 52°
Power Reserve: 48 hrs
Frequency: 21600 vph
Type: Manual Wind
Period used: 1974-
Diameter: 30 mm
Height: 6.47 mm
Hands: 1.60 x 1.10 x 0.25 / 0.25 x 0.23 mm
The Bettlach 8420-74 watch movement, introduced in 1974 and available in the "Green Setting" variant, features green plastic bearings for the balance and 13 jewels. This manual-wind chronograph movement incorporates a 60-second and 30-minute sub-dial, along with a pillar wheel mechanism. It also includes a sub-second display and a date function, making it a versatile choice for watch enthusiasts. Additionally, the Bettlach 8420-74 movement supports a calendar feature.
The Bettlach 8420-74 features the following functions:
- Calendar
- Date
- Manual-wind chronograph, 60s, 30min, pillar wheel
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
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Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.35 x 0.145 x 380 x 12.0 mm | GR3530 | Manual | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) | |
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| 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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