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Seiko 66A
Ligne: 10.5'''
Jewels: 15
Power Reserve: 42 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: 1934-
Diameter: 23.3 mm
Height: 4.3 mm
Hands: 1.20 x 0.80 / 0.20 mm
Base: Felsa 294
The Seiko 66A watch movement, utilized from 1934 onwards, incorporates a gold train, lever, and escape wheel. This movement is based on the Felsa 294 base movement, with modifications to the mainspring and stem mechanism. Noteworthy functions of this movement include manual winding and a sub-second display.
The Seiko 66A features the following functions:
- Manual Winding
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.60 x 0.090 x 320 x 9.0 mm | GR4466 | 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 |
|---|
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