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Hamilton 987S
Ligne: 16'''
Jewels: 15
Power Reserve: 31 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1935
Diameter: 36 mm
Height: 4.7 mm
Hands: 1.80 x 1.12 / 0.25 mm
The Hamilton 987S is a mechanical watch movement that belongs to the open face calibre family. Not much information is available regarding the differences between the 488, 490, 492, and 514 movements. The Hamilton 987S movement features stem winding and setting, as well as a sub-second function. It was commonly used during the approximate period of 1935.
The Hamilton 987S features the following functions:
- Stem wind and set
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 3537 | Ordinary/None | Buy staff |
| 589 | Ordinary/None | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.90 x 0.180 x 390 x 14.0 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) |
|---|
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