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Ronda 221P-21
Ligne: 19.5'''
Jewels: 11
Power Reserve: 14 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1971
Diameter: 44.8 mm
Height: 8.4 mm
Hands: 1.35 / 1.35 mm
Base: Hanhart 86
The Ronda 221P-21 open face calibre watch movement features a stop function with a pillar wheel, a barrel with Geneva stopwork, shock protection introduced around 1960, and a new mobile stud carrier, balance-stop, and its guide since approximately 1970. It offers a range of timer functions, including options for 60s (0.2s) and 30min, with the option to switch to 30s (0.1s) and 15min, 10s (1/30s) and 5min, or 3s (0.01s) and 90s. The movement also includes addition timer, stem wind, sweep second, and timer functions. This movement was used around 1971.
The Ronda 221P-21 features the following functions:
- Addition timer
- Option: 10s (1/30s), 5min
- Option: 30s (0.1s), 15min
- Option: 3s (0.01s), 90s
- Stem wind
- Sweep second
- Timer Function
- Timer, 60s (0.2s), 30min, pillar wheel
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 3096 | Ordinary/None | Buy staff |
| 4143 | Ordinary/None | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.70 x 0.190 x 18.0 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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