GMT-Masterll Oyster, 40 mm, Oystersteel and yellow gold

Model case

Oyster, 40 mm, Oystersteel and yellow gold

Oyster architecture

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

Diameter

40 mm

Material

Yellow Rolesor - combination of Oystersteel and yellow gold

Bezel

Bidirectional rotatable 24-hour graduated bezel. Two-colour grey and black Cerachrom insert in ceramic, moulded numerals and graduations

Winding crown

Screw-down, Triplock triple waterproofness system

Crystal

Scratch-resistant sapphire

Water resistance

Waterproof to 100 metres / 330 feet

Movement

Perpetual, mechanical, self-winding, GMT function

Calibre

3285, Manufacture Rolex

Precision

-2/+2 sec/day, after casing

Functions

Centre hour, minute and seconds hands. 24-hour display. Second time zone with independent rapid-setting of the hour hand. Instantaneous date. 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

Jubilee, five-piece links

Material

Yellow Rolesor - combination of Oystersteel and yellow gold