Rolex Day-Date 40 Yellow Gold

ReferenceåÊ228238

MODEL CASE: Oyster, 40 mm, yellow gold; OYSTER ARCHITECTURE
Monobloc middle case, screw-down case back and winding crown; DIAMETER
40 mm; MATERIAL
18 ct 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
3255, Manufacture Rolex; PRECISION
-2/+2 sec/day, after casing; FUNCTIONS
Centre hour, minute and seconds hands Instantaneous day and date in apertures, unrestricted rapid-setting. Stop-seconds for precise time setting; OSCILLATOR
Paramagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers; WINDING
Bidirectional self-winding via Perpetual rotor; POWER RESERVE
Approximately 70 hours

BRACELET: President, semi-circular three-piece links; BRACELET MATERIAL
18 ct yellow gold; CLASP
Concealed folding Crownclasp

CERTIFICATION: Superlative Chronometer (COSC + Rolex certification after casing)