THE OYSTER PERPETUAL DAY-DATE 40 IN 18 CT EVEROSE GOLD WITH AN OLIVE-GREEN DIAL, FLUTED BEZEL AND A PRESIDENT BRACELET.

The Day-Date was the first watch to indicate the day of the week spelt out in full when it was first presented in 1956.

Specifications

Reference 228235

MODEL CASE

Oyster, 40 mm, Everose gold

OYSTER ARCHITECTURE

Monobloc middle case, screw-down case back and winding crown

DIAMETER

40 mm

MATERIAL

18 ct Everose 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 Everose gold

CLASP

Concealed folding Crownclasp

DIAL

Olive green