Rolex Datejust 31 Oyster, 31 mm, Oystersteel, yellow gold and diamonds m278383rbr-0021
Reference | 278383RBR |
Material | Yellow Rolesor - combination of Oystersteel and yellow gold |
Diameter | 31 mm |
Movement | Perpetual, mechanical, self-winding |
Dial | Dark grey set with diamonds |
Power Reserve | Approximately 55 hours |
Model Case | Oyster, 31 mm, Oystersteel, yellow gold and diamonds |
Oyster Architecture | Monobloc middle case, screw-down case back and winding crown |
Bezel | Set with diamonds |
Winding crown | Screw-down, Twinlock double waterproofness system |
Crystal | Scratch-resistant sapphire, Cyclops lens over the date |
Water resistance | Waterproof to 100 metres / 330 feet |
Calibre | 2236, Manufacture Rolex |
Oscillator | Syloxi hairspring in silicon with patented geometry. High-performance Paraflex shock absorbers |
Winding | Bidirectional self-winding via Perpetual rotor |
Bracelet | Oyster, three-piece solid links |
Bracelet Material | Yellow Rolesor - combination of Oystersteel and yellow gold |
Clasp | Folding Oysterclasp with Easylink 5 mm comfort extension link |
Certification | Superlative Chronometer (COSC + Rolex certification after casing) |
GEM-SETTING | Diamonds in 18 ct gold settings, Roman IX in 18 ct gold set with 8 diamonds |
STYLE | Women |
Any day can leave a lasting mark on our lives and set the stage for new aspirations. Since its creation in 1945, the Datejust has continued to reinvent itself while symbolizing Rolex’s definition of classic elegance. A milestone in watchmaking history, it was the first selfwinding waterproof chronometer wristwatch to feature a window displaying the date. Magnified by the Cyclops lens, these numbers are a reminder that though 24 hours mark a day, it’s on us to make those a date to remember.
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