Rolex Datejust 31mm Yellow Gold 278278 White Roman Dial Ladies President Bracelet

Model case

• Model case

  Oyster, 31 mm, yellow gold

• Oyster architecture

  Monobloc middle case, screw-down case back and winding crown

• Diameter

  31 mm

• Material

  18 kt yellow gold

• Bezel

  Fluted

• 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

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

Bracelet

• Bracelet

  President, semi-circular three-piece links

• Material

  18 kt yellow gold

• Clasp

  Concealed folding Crownclasp

Dial

• Dial

  White