Rolex caliber 3131
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| Brand: | Rolex |
|---|---|
| Reference: | 3131 |
| Base: | Rolex 3130 |
| Movement: | Automatic |
| Display: | Analog |
| Diameter: | 28.50 |
| Jewels: | 31 |
| Reserve: | 48 |
| Frequency: | 28800 |
| Hands: | Hours, Minutes, Seconds |
| Additionals: | Chronometer |
3131 description
Calibre 3131 is a self-winding mechanical movement entirely developed and manufactured by Rolex. Like all Rolex Perpetual movements, the 3131 is a certified Swiss chronometer, a designation reserved for high-precision watches that have successfully passed the Swiss Official Chronometer Testing Institute (COSC) tests. Its architecture, in common with all Oyster watch movements, makes it singularly reliable.
