Description
Rolex Datejust 278285RBR-0027 Slate Roman Numeral Set with Diamonds 31mm Dial Diamond Set Bezel President Bracelet Watch
Specifications:
| Brand: | Round |
| Model: | Datejust 31 |
| Reference Number: | 278285RBR |
| CASE | |
| Case Shape | Round |
| Case Dimensions | 31 mm |
| Case Material | 18 kt Everose gold |
| Crystal | Scratch-resistant sapphire, Cyclops lens over the date |
| Bezel | Set with diamonds |
| Screw-in Crown | Screw-down, Twinlock double waterproofness system |
| Water Resistance | Waterproof to 100 metres / 330 feet |
| Case Back | Solid |
| DIAL | |
| Dial Color | Slate set with diamonds |
| Gen settings |
Large VI set with 11 diamonds |
| BRACELET | |
| Band Material | 18 kt Everose gold |
| Band Name | President, semi-circular three-piece links |
| Clasp | Concealed folding Crownclasp |
| MOVEMENT | |
| Movement | Perpetual, mechanical, self-winding |
| Calibre: | 2236, Manufacture Rolex |
| Precision: | -2/+2 sec/day, after casing |
| Functions: | Centre hour, minute and seconds hands. Instantaneous date with rapid setting. Stop-seconds for precise time setting |
| Oscillator: | Syloxi hairspring in silicon with patented geometry. High-performance Paraflex shock absorbers |
| Winding: | Bidirectional self-winding via Perpetual rotor |
| Power reserve: | Approximately 55 hours |
| Certification: | Superlative Chronometer (COSC + Rolex certification after casing) |
