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Ronda 1239-21
Ligne: 11.5'''
Jewels: 17/39
Lift Angle: 52°
Power Reserve: 35 hrs
Frequency: 18000 vph
Type: Automatic
Period used: 1957-
Diameter: 26 mm
Height: 5.5 mm
Hands: 1.30 x 0.80 x 0.22 mm
The Ronda 1239-21 watch movement, first introduced in 1957, is based on the modified Peseux 335 base movement. It is an automatic movement equipped with two roller freewheels and a jewel-bearing rotor. The automatic feature is incorporated as a module on the base movement. In addition, the movement is capable of displaying sweep seconds. It has been in use since 1957.
The Ronda 1239-21 features the following functions:
- Automatic Winding
- Sweep second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.30 x 0.095 x 360 x 9.5 mm | GR3239X | 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
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