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Citizen 4121
Ligne: 12.5'''
Jewels: 23
Power Reserve: 37 hrs
Frequency: 18000 vph
Type: Automatic
Period used: 1960-1967
Diameter: 28.6 mm
Height: 6.4 mm
Hands: 1.50 x 1.00 x 0.21 mm
The Citizen 4121 mechanical watch movement was produced between 1960 and 1967, with a total of 190,360 units manufactured. It features Incabloc shock devices, a jewel-bearing rotor, and a detached manual wind. This movement incorporates several functions, including automatic winding, sweep seconds, and a calendar with the date set by changing the 20-24 hour period.
The Citizen 4121 features the following functions:
- Automatic Winding
- Calendar
- Date: set by changing 20-24h
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.40 x 0.110 x 11.0 mm | Auto | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) | |
|---|---|---|---|
| See More |
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
|---|---|---|---|
| CENTER WHEEL, SS COMPLETE | 206/685 | Buy part | |
| STAFF, INCA | 100/2622 | Buy part | |
| STEM | 200/1695F | Buy part |
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