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Hamilton 987A
Ligne: 10.5'''
Jewels: 16
Power Reserve: 35 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1930
Diameter: 23.5 mm
Height: 4.0 mm
Hands: 1.25 x 0.63 mm
The Hamilton 987A movement is a chronometer movement that features a bimetallic screw balance and early shock protection. It is a manually-wound movement with a sub-second function. This movement was commonly used during the period around 1930.
The Hamilton 987A features the following functions:
- Manual Winding
- Sub Second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.80 x 0.090 x 250 x 8.0 mm | Manual | Buy mainspring | |
| 1.50 x 0.100 x 280 x 8.5 mm | GR4121 | 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 |
|---|---|---|---|
| SCREW, DIAL FOOT | 5750/ELE 62 | Buy part | |
| STEM | 200/277F | Buy part |
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