The Rolex Datejust 31 (Reference 278278) combines elegance and craftsmanship in a 31 mm 18 kt yellow gold case. Featuring a fluted bezel and a white mother-of-pearl dial adorned with diamonds set in 18 kt gold, this timepiece offers both luxury and clarity with its Chromalight display. Powered by the Manufacture Rolex Calibre 2236 self-winding movement, it delivers -2/+2 seconds per day precision and a 55-hour power reserve. Waterproof to 100 meters and paired with the iconic President bracelet, it embodies style, comfort, and Swiss precision.
Specifications:
Gender: Women’s
Brand: Rolex
Collection: Datejust 31
Reference: 278278
Movement Type: Perpetual, mechanical, self-winding
Caliber: 2236, Manufacture Rolex
Precision: -2/+2 seconds per day (after casing)
Power Reserve: Approximately 55 hours
Functions: Centre hour, minute and seconds hands; instantaneous date with rapid setting; stop-seconds for precise time setting
Dial Color: White Mother-of-Pearl
Dial Details: Diamond-set dial with diamonds in 18 kt gold settings
Bezel: Fluted
Display Details: Highly legible Chromalight display with long-lasting blue luminescence
Case Shape: Round
Case Material: 18 kt yellow gold
Case Architecture: Monobloc middle case, screw-down case back and winding crown
Crystal: Scratch-resistant sapphire, Cyclops lens over the date
Winding Crown: Screw-down, Twinlock double waterproofness system
Dimension: 31 mm
Water Resistance: Waterproof to 100 meters / 330 feet
Oscillator: Syloxi hairspring in silicon with patented geometry; high-performance Paraflex shock absorbers
Winding Mechanism: Bidirectional self-winding via Perpetual rotor
Bracelet: President, semi-circular three-piece links
Bracelet Material: 18 kt yellow gold
Clasp: Concealed folding Crownclasp
