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Ronda 031
Jewels: 21
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1923
Diameter: 43.18 mm
Height: 6.0 mm
The Ronda 031 is an open face calibre watch movement with a pink gold train. It features a bimetallic screw balance and a Breguet hairspring. The movement is stem wind and lever set, and it includes a sub second function. It was commonly used in watches around the year 1923.
The Ronda 031 features the following functions:
- Stem wind and lever set
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
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Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
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Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
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