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Seiko 2C20-5180
Ligne: 19'''
Jewels: 21
Power Reserve: 31 hrs
Frequency: 18000 vph
Period used: 1838-1866
Diameter: 42.85 mm
Height: 6.0 mm
The Seiko 2C20-5180 watch movement, produced between 1838 and 1866, featured a bimetallic screw balance, Breguet hairspring, long pallet lever with counter weight surrounding the escapement pinion, and a flying barrel with Geneva stopwork. It functioned as a key wind and set movement with a sub-second display.
The Seiko 2C20-5180 features the following functions:
- Key wind and set
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
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Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
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Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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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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