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Longines 19.75
Ligne: 11.5'''
Jewels: 17/21
Power Reserve: 44 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1955
Diameter: 26 mm
Height: 4.3 mm
Hands: 1.35 x 0.90 x 0.28 mm
The Longines 19.75 watch movement, produced around 1955, features a manual winding mechanism and a sweep seconds function. An intermediate wheel, labeled as B, acts as a link between the directly driven sweep seconds wheel, labeled as C, and the 4th wheel, labeled as A. This configuration allows for a larger barrel, but no further details are provided.
The Longines 19.75 features the following functions:
- Manual Winding
- Sweep second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.45 x 0.120 x 290 x 10.0 mm | Manual | Buy mainspring | |
| 1.40 x 0.120 x 320 x 9.5 mm | GR3728 | Manual | 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) |
|---|
Documents
Parts Listing
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