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Longines 431
Ligne: 11.5'''
Jewels: 25
Power Reserve: 43 hrs
Frequency: 18000 vph
Type: Automatic
Period used: ~1950
Diameter: 26.3 mm
Height: 6.1 mm
Hands: 1.35 x 0.90 x 0.28 mm
Base: General 837
The Longines 431 is a manual winding watch movement with a counterclockwise rotation. It features an intermediate wheel (B) which allows for a higher barrel by creating space between the directly driven sweep second (C) and the 4th wheel (A). This movement also includes automatic functionality and a sweep second hand. The Longines 431 was commonly used during the period of approximately 1950.
The Longines 431 features the following functions:
- Automatic 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 0.110 x 320 x 9.5 mm | Auto | 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
| Part Description | Reference # | Alternate | Buy |
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