Rolex Datejust Series Ladies Oystersteel Watch 279383RBR

Model case
Oyster, 28 mm, Oystersteel, yellow gold and diamonds
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
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

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