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Hamilton 261
Ligne: 8.75'''
Jewels: 15
Power Reserve: 35 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1925
Diameter: 19.75 mm
Height: 3.55 mm
Hands: 1.25 x 0.70 / 0.20 mm
The Hamilton 261 is a manual wind mechanical watch movement with a sub-second function. It features a bimetallic screw balance and a stem mechanism without a setting-lever spring. The bridge shapes of this movement may differ from the Ebel 8.75''', but specific differences are not known. The Hamilton 261 movement was likely produced around 1925, and it belongs to a series of movements with various designations, including the 158, 159, 185, 208, 212, 220, 238, 251, 259, 261, and 277.
The Hamilton 261 features the following functions:
- Manual Winding
- Sub Second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.35 x 0.080 x 260 x 7.5 mm | GR3474 | Manual | Buy mainspring |
| 1.30 x 0.080 x 220 x 7.0 mm | 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
| Part Description | Reference # | Alternate | Buy |
|---|
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