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Hamilton 661
Ligne: 7.75'''
Jewels: 21
Power Reserve: 39 hrs
Frequency: 28800 vph
Type: Automatic
Period used: 1971-
Diameter: 17.5 mm
Height: 4.8 mm
Hands: 1.20 x 0.70 x 0.20 mm
Base: ETA 2671
The Hamilton 661 watch movement, used from 1971 onwards, is an automatic movement with a sweep second hand, quickset date function, and a hack feature.
The Hamilton 661 features the following functions:
- Automatic Winding
- Date: quickset
- Hack feature
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.32 x 0.077 x 290 x 6.5 mm | Auto | 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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Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
|---|
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