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Ronda 1117-21
Jewels: 15
Power Reserve: 34 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: 1897-1899
Diameter: 39.75 mm
Height: 5.0 mm
Hands: 1.50 x 0.92 / 0.26 mm
The Ronda 1117-21 watch movement is an open face calibre, model 3, that was produced from 1897 to 1899 in a quantity of 10,000 units. It features a bimetallic screw balance, Breguet hairspring, and a pink-gold center wheel. The movement incorporates a negative stem mechanism with an additional lever, allowing for setting and winding to be switched between using the crown. Other functions of the Ronda 1117-21 movement include stem wind, sub second display, and it is made in America.
The Ronda 1117-21 features the following functions:
- American Made
- Stem wind, switching by crown or lever
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 2.05 x 0.200 x 520 x 15.5 mm | 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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