Rolex Datejust 278288RBR-0030 Dark Grey Set with Diamonds 31mm Dial Diamond-Set Bezel and President Bracelet Watch
Specifications:
Brand: | Rolex |
Model: | Datejust 31 |
Reference Number: | 278288RBR-0030 |
CASE | |
Case Shape: | Round |
Case Diameter: | 31 mm |
Case Material: | 18 kt yellow gold |
Crystal: | Scratch-resistant sapphire, Cyclops lens over the date |
Bezel: | Set with diamonds |
Oyster Architecture: | Monobloc middle case, screw-down case back and winding crown |
Water Resistance: | Waterproof to 100 metres / 330 feet |
Winding Crown: | Screw-down, Twinlock double waterproofness system |
DIAL | |
Dial Color | Dark grey set with diamonds |
Gem-Setting | Diamonds in 18 kt gold settings |
BRACELET | |
Band Material | 18 kt yellow 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 |
Complicated: | Date |
COSC Certified: | Yes |