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Ronda 317P-21
Ligne: 11.5'''
Jewels: 15/17
Power Reserve: 41 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1945
Diameter: 26 mm
Height: 3.5 mm
Hands: 1.40 x 0.80 / 0.22 mm
The Ronda 317P-21 mechanical watch movement is part of a series of movements that includes the 930, 935, 937, 942, 973, 1015, 1016, 1018, and 1024 variations. It is likely that the main differences between these variations lie in the bridge designs. The Ronda 317P-21 movement features manual winding and a sub-second function. It was commonly used in watches manufactured around 1945.
The Ronda 317P-21 features the following functions:
- Manual Winding
- Sub Second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.55 x 0.100 x 290 x 9.0 mm | Manual | Buy mainspring | |
| 1.55 x 0.105 x 280 x 9.0 mm | GR4390 | 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
| Part Description | Reference # | Alternate | Buy |
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