Introduced at Baselworld 2015, the Rolex Day-Date 40 is equipped with the next generation Caliber 3255, which once again sets the standard in horological precision. With 14 patents, the Day-Date 40 is an outstanding demonstration of Rolex technology. This masterpiece has increased precision, power reserve, shock and magnetism resistance, ease of use, and overall reliability, and is available in an assortment of sophisticated bezel and dial choices to make the piece uniquely suited to each owner. A favorite of Captains of Industry and everyone who values the world’s finest engineering.

Reference
228239

MODEL CASE
Oyster, 40 mm, white gold
OYSTER ARCHITECTURE
Monobloc middle case, screw-down case back and winding crown
DIAMETER
40 mm
MATERIAL
18 ct white 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
ESCAPEMENT
Chronergy with optimized energy efficiency
WINDING
Bidirectional self-winding via Perpetual rotor
POWER RESERVE
Approximately 70 hours

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

DIAL
Olive green

CERTIFICATION
Superlative Chronometer (COSC + Rolex certification after casing)

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Day-Date 40 228239 White Gold Watch (Olive Green)

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