228239 Blue

Description

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. 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 white gold

CLASP

Concealed folding Crownclasp