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Longines 8LN
Ligne: 8 x 9'''
Jewels: 17
Power Reserve: 40 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1945
Size: 18.5 x 20.8 mm
Height: 4.3 mm
Hands: 1.50 x 0.90 x 0.20 mm
The Longines 8LN watch movement is a manual wind movement with a sweep second function. It features an Incastar regulator, unique to large-scale production, which incorporates a free oscillating hairspring. The spring's end is fixed between two rollers that adjust its length, eliminating isochronism error caused by the gap between regulator pins. The Longines 8LN movement is similar to the 1091, 1190, and 1191 movements, with no known differences. It was produced around 1945.
The Longines 8LN features the following functions:
- Manual Winding
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 811 | Ordinary/None | Buy staff |
| 873 | Incabloc | Buy staff |
| 3226 | Supershock | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.30 x 0.100 x 250 x 8.5 mm | Manual | Buy mainspring | |
| 1.30 x 0.100 x 260 x 6.0 mm | GR3251 | Manual | Buy mainspring |
| 1.25 x 0.100 x 260 x 8.0 mm | GR3108 | 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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