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Ronda 1131
Ligne: 19.5'''
Jewels: 7
Power Reserve: 18 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1969
Diameter: 44.8 mm
Height: 8.4 mm
Hands: 1.35 / 1.35 mm
Base: Hanhart 86
The Ronda 1131 is an open face calibre watch movement that features a stop function with a pillar wheel. It is equipped with shock protection since approximately 1960. Additionally, it includes a mobile stud carrier, balance-stop, and its guide that were introduced around 1970. The movement offers various functions such as a timer with intervals of 60 seconds (with 0.2 seconds accuracy) and 30 minutes. There is also an option for a timer with intervals of 30 seconds (0.1 seconds accuracy) and 15 minutes. Other functions include an addition timer, stem wind, sweep second, and a timer function. The Ronda 1131 movement was utilized around 1969.
The Ronda 1131 features the following functions:
- Addition timer
- Option: 30s (0.1s), 15min
- Stem wind
- Sweep second
- Timer function, 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 |
|---|---|---|---|
| 1.90 x 0.150 x 480 x 15.0 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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