Rolex Datejust 31 White Gold 278289RBR Silver Index President
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Description
| Case Shape | Round |
| Case Dimensions | 31mm |
| Case Material | 18kt White Gold |
| Dial Color | Silver |
| Crystal | Scratch Resistant Sapphire |
| Bezel | Fixed |
| Screw-in Crown | Yes |
| Water Resistance | 100m/330ft |
| Case Back | Solid |
| Band Material | 18kt White Gold |
| Color/Finish | Brushed & Polished |
| Band Name | Rolex President |
| Clasp | Rolex Concealed Folding Crownclasp |
| Movement | Automatic – Chronometer |
| COSC Certified | Yes |
Additional information
ADDITIONAL INFORMATION
ADDITIONAL INFORMATION
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- Polished 18kt white gold case.
- Polished 18kt white gold Twinlock crown.
- Polished 18kt white gold bezel set with 46 diamonds.
- Silver dial.
- Applied polished 18kt white gold index .
- Polished 18kt white gold hands.
- Date window displayed at the 3 o’clock position with a cyclops magnifying lens.
- Rolex in-house caliber 2236, beats at 28,800 vph, contains 31 jewels & has an approximate power reserve of 55 hours. The movement features a Syloxi hairspring in silicon & high-performance Paraflex shock absorbers.
- The watch is Superlative Chronometer certified: the movement is COSC certified prior to casing, then it is tested a second time by Rolex after being cased to ensure accuracy.
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