Rolex, Lady-Datejust

Oyster, 28 mm, Oystersteel and yellow gold

Reference 279173

Model case

Oyster, 28 mm, Oystersteel and yellow gold

Oyster architecture

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

Diameter

28 mm

Material

Yellow Rolesor - combination of Oystersteel and 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

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

Jubilee, five-piece links

Material

Yellow Rolesor - combination of Oystersteel and yellow gold

Clasp

Concealed folding Crownclasp

• Dial

  Silver