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Certina 920-1
Ligne: 11.5'''
Jewels: 22/25
Power Reserve: 32 hrs
Frequency: 18000 vph
Type: Automatic
Period used: 1952-1956
Diameter: 26 mm
Height: 6.5 mm
Hands: 1.60 x 0.95 x 0.21 mm
The Certina 920-1 watch movement, produced from 1952 to 1956, was the first automatic movement developed by Durowe. Its wheels were made of beryllium bronze. This movement included the following functions: automatic winding and sweep seconds.
The Certina 920-1 features the following functions:
- Automatic Winding
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 5472 | Ordinary/None | Buy staff |
| 3401 | Durobloc | Buy staff |
| 3401 | Duroswing | Buy staff |
| 3402 | Incabloc | Buy staff |
| 5472 | Incabloc | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.40 x 0.110 x 260 x 9.0 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) |
|---|
Documents
Parts Listing
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