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Ronda 1238-21
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 / 0.22 mm
Base: Girard Perregaux 21
The Ronda 1238-21 watch movement, developed in 1957, is built upon the modified Peseux 330 base movement. It incorporates an automatic mechanism with two roller freewheels and a jewel-bearing rotor, serving as a module on the base movement. This movement is equipped with sub-second functionality and is designed to operate automatically. Its usage period extends from 1957 onwards.
The Ronda 1238-21 features the following functions:
- Automatic Winding
- Sub 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
| Part Description | Reference # | Alternate | Buy |
|---|---|---|---|
| BALANCE COMPLETE | 721/870 | 721/870 | Buy part |
| BARREL, SEALED | 182/683 | 182/683 | Buy part |
| MAINSPRING 1.30-.095-360 9,5 | MSS-WA59 | GR 3239-X | Buy part |
| PALLET ARBOR 40X80X9 | 72S/75P | 714/AS 1141 | Buy part |
| ROLLER, INCABLOC 180X75X36 | 82S/147R | 730/AS 1649 | Buy part |
| STAFF, INCA 60 HSPRING | 100/770 | 100/PES 180 | Buy part |
| STEM, T10 | 200/708F | 401/PES 180 | Buy part |
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