Rolex Day-Date 40 Oyster, 40 mm, yellow gold Reference 228238 W/Card 2025

228238 The Oyster Perpetual Day-Date 40 in 18 kt yellow gold with a white dial, fluted bezel and a President bracelet.

MODEL CASE 

Model case: Oyster, 40 mm, yellow gold

Oyster architecture: Monobloc middle case, screw-down case back and winding crown

Diameter: 40 mm

Material: 18 kt 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

MOVEMENT

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, secure rapid-setting. Stop-seconds for exact 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

Bracelet: President, semi-circular three-piece links

Material: 18 kt yellow gold

Clasp: Concealed folding Crownclasp

DIAL 

Dial: White

CERTIFICATE 

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