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Rolex
GMT-Master II
Oyster, 40 mm, Oystersteel
Reference
126710BLRO
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
Perpetual, mechanical, self-winding, GMT function
Calibre
3285, Manufacture Rolex
Precision
-2/+2 sec/day, after casing
Escapement
Chronergy with optimized energy efficiency
Winding
Bidirectional self-winding via Perpetual rotor
Power Reserve
Approximately 70 hours
Bracelet
Jubilee, five-piece links
Bracelet Material
Oystersteel
Clasp
Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link
Dial
Black
Details
Highly legible Chromalight display with long-lasting blue luminescence
Certification
Superlative Chronometer (COSC + Rolex certification after casing)



24-Hour Rotatable Bezel
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.

Black Dial
Like all Rolex Professional watches, the GMT-Master II offers exceptional legibility in all circumstances, and especially in the dark, thanks to its Chromalight display. The broad hands and hour markers in simple shapes – triangles, circles, rectangles – are filled with a luminescent material emitting a long-lasting glow.

Oystersteel
Rolex uses Oystersteel for its steel watch cases. Specially developed by the brand, Oystersteel belongs to the 904L steel family, alloys most commonly used in high-technology and in the aerospace and chemical industries, where maximum resistance to corrosion is essential. Oystersteel is extremely resistant, offers an exceptional finish once polished and maintains its beauty even in the harshest environments.

MODEL AVAILABILITY
All Rolex watches are assembled by hand with the utmost care to ensure exceptional quality. Such high standards naturally restrict Rolex production capacity and, at times, the demand for Rolex watches outpaces this capacity.
Therefore, the availability of certain models may be limited. New Rolex watches are exclusively sold by Official Rolex Retailers, who receive regular deliveries and independently manage the allocation and sales of watches to customers.
Srichai Watch is proud to be part of the worldwide network of Official Rolex Retailers and can provide information on the availability of Rolex watches.
Designed to show the time in two different time zones simultaneously, the GMT-Master, launched in 1955, was originally developed as a navigation instrument for professionals criss-crossing the globe. Heir to the original model, the GMT-Master II was unveiled in 1982, with a new movement ensuring ease of use. Its combination of peerless functionality, robustness and instantly recognizable aesthetics has attracted a wider audience of world travellers.
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