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Certina 304
Ligne: 13'''
Jewels: 15
Power Reserve: 45 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1955
Diameter: 29.4 mm
Height: 3.8 mm
Hands: 1.50 x 0.80 / 0.20 mm
The Certina 304 watch movement, produced around 1955, is characterized by its manual wind functionality and sub-second display. It shares similarities with other movements, such as the 261, 264, 269, 2610 through 2616, 2618, and 2619, with the exception of varying bridge layouts.
The Certina 304 features the following functions:
- Manual Winding
- Sub Second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.70 x 0.110 x 390 x 11.0 mm | Manual | Buy mainspring | |
| 1.70 x 0.115 x 360 x 10.5 mm | GR4918 | 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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