Day-Date 40 228238 Gold Watch (Champagne Set with Diamonds)

Reference
228238

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
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 yellow gold
CLASP
Concealed folding Crownclasp

DIAL
Champagne set with diamonds
GEM-SETTING
10 baguette-cut diamonds
CERTIFICATION
Superlative Chronometer (COSC + Rolex certification after casing)