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Hamilton 55
Ligne: 11.5'''
Jewels: 17/21
Lift Angle: 52°
Power Reserve: 39 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1955
Diameter: 26 mm
Height: 3.6 mm
Hands: 1.30 x 0.90 x 0.21 mm
The Hamilton 55 is a manual wind watch movement with a sweep seconds function and a date feature that is set by changing the time between 21:30 and 24:00. It was produced around 1955. The specific differences between the 72-4N and the 725-4N are not currently known.
The Hamilton 55 features the following functions:
- Date: set by changing 21:30-24h
- Manual Winding
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 4102 | Ordinary/None | Buy staff |
| 5433 | Incabloc | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.20 x 0.130 x 300 x 9.5 mm | GR2988 | 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 |
|---|---|---|---|
| ARBOR,PALLET S/C PVT 40X130X11 | 72S/256P | 715/FF 72 | Buy part |
| BALANCE COMPLETE | 721/304 | Buy part | |
| CROWN WHEEL | 420/844 | Buy part | |
| CROWN WHEEL RING | 422/405 | 3088/ROL | Buy part |
| MAINSPRING 1.20-.13-300 9,5 | MS-39M | GR 2988 | Buy part |
| MINUTE WHEEL | 260/224 | 260/FF 553-2N | Buy part |
| PALLET ARBOR 40X95X11 | 72S/85P | 714/AS 1130 | Buy part |
| ROLLER 180X75X36 | 82S/40R | 730/31 | Buy part |
| ROLLER, INCABLOC 180X75X36 | 82S/147R | 730/AS 1649 | Buy part |
| STAFF | 100/1818 | 723/276 | Buy part |
| STAFF, INCA | 100/1444 | 723/FF 72 | Buy part |
| STEM, FEMALE OA10.2O | 360/231 | 360/231 | Buy part |
| STEM, TAP 10 | 200/1163F | 401/FF 552-2N | Buy part |
| WINDING PINION | 410/1237 | /FF 725-4N | Buy part |
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