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Brand: | Rolex | 
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|---|---|---|---|
| Family: |
Unknown
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| Height: | |||
| Jewels: | |||
| Reserve: | 48 hours | ||
| Frequency: | A/h | ||
| Winding: | Automatic, Bi-Directional Automatic Winding, Central Rotor Automatic Winding | ||
| Diameter: | |||
| Rolex Cal. 2231 © Rolex | Complications: | Hacking Seconds | |
| Hands: | Central Hour Hand, Central Minute Hand, Central Seconds Hand | ||
| Distinguishing Technical Characteristics | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
 Central-Rotor Automatic  Balance Bridge |
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| Production: – Current | |||||||||||
| 1910s | 1920s | 1930s | 1940s | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020s |
Cal. 2231 is a compact automatic movement from Rolex.
- Rolex Oyster Perpetual 26 (-present), Ref. 176200
- Rolex Oyster Perpetual 31 (-present), Ref. 177200