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Oyster Perpetual

GMT-Master II

GMT-Master II
Oyster, 40 mm, Oystersteel

Although the Rolex GMT-Master was designed essentially for professional use, its combination of peerless functionality and rugged good looks has attracted a wider travelling public. As well as appreciating its ability to display different time zones, these travellers admire the robustness and versatile appearance that make the GMT-Master eminently suitable for globetrotting and, indeed, for any occasion.

904L Stainless Steel

Model features

Rolex uses 904L stainless steel for its steel watch cases. 904L steel is mainly used in the high technology, aerospace and chemical industries, where maximum resistance to corrosion is essential. A superalloy, 904L steel is extremely resistant and highly polishable. It maintains its beauty even in the harshest environments.

Black Dial

Model features

The dial is the distinctive face of a Rolex watch, the feature most responsible for its identity and readability. Characterised by hour markers fashioned from 18 ct gold to prevent tarnishing, every Rolex dial is designed and manufactured in-house, largely by hand to ensure perfection.

The Jubilee bracelet

Model features

The design, development and production of Rolex bracelets and clasps, as well as the stringent tests they face, involve advanced high technology. And, as with all the components of the watch, aesthetic controls by the human eye guarantee impeccable beauty. The Jubilee, a supple and comfortable five-piece link metal bracelet, was designed and made especially for the launch of the Oyster Perpetual Datejust in 1945.

3285 Movement

Model features

The new calibre 3285, a new-generation movement entirely developed and manufactured by Rolex. With 10 patent applications filed over the course of its development, this movement features a Chronergy escapement and a guaranteed power reserve of approximately 70 hours. Like all Rolex Perpetual movements, the 3285 is a certified Swiss chronometer, a designation reserved for high-precision watches that have successfully passed the Swiss Official Chronometer Testing Institute (COSC) tests. The 3285 is equipped with a Parachrom hairspring, offering greater resistance to shocks and to temperature variations. Its architecture, in common with all Oyster watch movements, makes it singularly reliable.

A 24-hour rotatable bezel

Model features

In addition to conventional hour, minute and seconds hands, the GMT-Master II features an arrow-tipped hand, which circles the dial once every 24 hours, as well as a bidirectional rotatable 24-hour graduated bezel. The distinctively coloured 24-hour hand displays the “home” reference time in a first time zone which can be read on the graduations on the bezel. The traveller’s local time is easily set by “jumping” from hour to hour, thanks to an ingenious mechanism operated via the winding crown: the hour hand can be adjusted forwards or backwards independently of the minute and seconds hands. This allows travellers to adapt to their new time zone without affecting the precision of their timekeeping.

Reference 126710BLRO
Model case
Model case
Oyster, 40 mm, Oystersteel
Oyster architecture
Monobloc middle case, screw-down case back and winding crown
Diameter
40 mm
Material
Oystersteel
Bezel
Bidirectional rotatable 24-hour graduated bezel. Two-colour red and blue Cerachrom insert in ceramic, engraved numerals and graduations
Winding crown
Screw-down, Triplock triple waterproofness system
Crystal
Scratch-resistant sapphire, Cyclops lens over the date
Water-resistance
Waterproof to 100 metres / 330 feet
Movement
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
Escapement
Chronergy with optimized energy efficiency
Winding
Bidirectional self-winding via Perpetual rotor
Bracelet
Bracelet
Jubilee, five-piece links
Bracelet material
Oystersteel
Clasp
Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link
Dial
Black
Certification
Superlative Chronometer (COSC + Rolex certification after casing)

the GMT-Master II

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