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Ronda 1235-21
Ligne: 12'''
Jewels: 7/17/23
Lift Angle: 52°
Power Reserve: 41 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1970
Diameter: 27 mm
Height: 3.9 mm
Hands: 1.80 x 1.30 x 0.20 mm
The Ronda 1235-21 watch movement is equipped with a stem mechanism that does not utilize a setting-lever spring. It features a unique design in which the train and hand gears are driven separately by the barrel. This movement offers manual winding functionality and includes a sweep seconds function. It utilizes a jeweled lever system, indicating the presence of jewels within the movement to reduce friction. The Ronda 1235-21 movement was in use during the approximate period of 1970.
The Ronda 1235-21 features the following functions:
- Manual Winding
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 5200 | Ordinary/None | Buy staff |
| 5199 | Incabloc | Buy staff |
| 5199 | Kif | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.40 x 0.100 x 360 x 10.0 mm | Manual | Buy mainspring | |
| 1.40 x 0.100 x 360 x 9.5 mm | GR3667 | Manual | Buy mainspring |
| 1.40 x 0.110 x 320 x 9.5 mm | GR3699 | 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
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