The GMT-Master II takes pride in its status as the watch for long-haul pilots. Precise, reliable and functional, it was designed to allow airline pilots to read the time in two different time zones simultaneously. In function as well as in name, the GMT-Master II evokes intercontinental travel across time zones.
ACROSS TIME ZONES
As intercontinental travel developed in the 1950s with the advent of the jet age, airliners began to fly swiftly across successive time zones, making it important to know simultaneously the time in various places in the world. The GMT-Master was developed to meet the specific needs of airline pilots. It became the official watch of several airlines, including Pan American World Airways, better known worldwide as Pan Am.
24-HOUR DISPLAY AND INDEPENDENT HOUR HAND
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. This 24-hour hand displays the reference time (“home” time for example), which can be read on the graduations on the bezel. Travelers can read local time on the dial, indicated by the hour hand. It is easily set, “jumping” from hour to hour thanks to an ingenious mechanism operated via the winding crown.
24-HOUR ROTATABLE BEZEL
The bezel was carefully designed to ideally fulfil its function – displaying the time in different time zones. Rolex developed a new bezel rotation system with a spring whose innovative geometry allows the bezel to be turned crisply and securely in either direction and locate with a positive click in each of the 24 hour positions. This exclusive system also ensures reliable functioning of the bezel over time.
HIGHLY RESISTANT CERACHROM BEZEL INSERT
The bidirectional rotatable bezel of the GMT-Master II is equipped with a 24-hour graduated Cerachrom insert. The insert, made of an extremely hard and corrosion-resistant ceramic, is virtually scratchproof and its colour is unaffected by ultraviolet rays. The numerals and the graduations are engraved in ceramic and coated with gold or platinum using a PVD (Physical Vapour Deposition) process patented by Rolex. Over and above its functions and its intrinsic technical assets, the Cerachrom bezel of the GMT-Master II contributes to the model’s strong visual identity.
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Founded by Hans Wilsdorf in 1905, Rolex pioneered the development of the wristwatch and is at the origin of numerous major watchmaking innovations, such as the Oyster, the first waterproof wristwatch, launched in 1926, and the Perpetual rotor self-winding mechanism invented in 1931. Rolex has registered over 400 patents in the course of its history. A truly integrated and independent manufacturing company, Rolex designs, develops and produces in-house all the essential components of its watches, from the casting of the gold alloys to the machining, crafting, assembly and finishing of the movement, case, dial and bracelet. Rolex is also actively involved in supporting the arts, sports, exploration, the spirit of enterprise, and the environment through a broad palette of sponsoring activities, as well as philanthropic programmes.