Watch Database
Ronda 1015-21
Ligne: 12'''
Jewels: 15/17
Lift Angle: 52°
Power Reserve: 45 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1946
Diameter: 26.6 mm
Height: 3.85 mm
Hands: 1.50 x 0.80 / 0.20 mm
Base: A Michel 390
The Ronda 1015-21 is a manual wind mechanical watch movement with a sub-second function. It was in use around 1946, but the specific differences between the Ronda 1015-21, 392, 393, and 398 are not known. Additionally, it is uncertain whether the ebauches for these movements were manufactured by AM or Felsa.
The Ronda 1015-21 features the following functions:
- Manual Winding
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 780 | Ordinary/None | Buy staff |
| 3747 | Ordinary/None | Buy staff |
| 3801 | Incabloc | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.70 x 0.120 x 360 x 10.5 mm | GR4937 | Manual | Buy mainspring |
| 1.70 x 0.120 x 340 x 10.5 mm | GR4936 | Manual | Buy mainspring |
| 1.70 x 0.120 x 320 x 10.5 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
| Part Description | Reference # | Alternate | Buy |
|---|
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