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Certina 17-221
Ligne: 11.5'''
Jewels: 17
Power Reserve: 42 hrs
Frequency: 18000 vph
Type: Automatic
Period used: 1963-1973
Diameter: 26 mm
Height: 5.3 mm
Hands: 1.50 x 0.90 x 0.21 mm
Base: ETA 2452
The Certina 17-221 watch movement, utilized during the period from 1963 to 1973, incorporates a balance staff and stem that differ from those found in the ETA movement. It features an automatic function, a sweep second hand, and a date display that is adjusted by altering the 21-24-hour indicator.
The Certina 17-221 features the following functions:
- Automatic Winding
- Date: set by changing 21-24h
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.30 x 0.105 x 300 x 9.5 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) |
|---|
Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
|---|
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