always has GMT time available for talking to air traffic control and, when they land, only has to rotate the bezel to "set" the watch to their new local time. Glycine was the first to feature a 24-hour rotating bezel in 1953 with the Airman No.1 Pilot watch. The design became widely known when Rolex designed the Rolex GMT Master for Pan-Am Pilots in 1954. A 24-hour watch with a compass card dial can be used to determine direction when set to local noon and used in conjunction with the sun. Many (but not all) digital watches can be set to show the time in 24-hour format. Notable 24-hour watch brands Akerfalk (Swedish) Gallet (Swiss) Glycine (Swiss) Oris /(Swiss) Poljot (Russian) Raketa (USSR Russian) Rolex (Swiss) Seiko (Japan) Forté (USA) Slow watch (Swiss) World time A common use for the 24-hour analog method of representing time is for showing the way the time of day depends on one's location. A globe, map, or disk can be used. In fiction George Orwell uses the 12-hour and 24-hour dials to symbolize the old and new worlds in his novel Nineteen Eighty-Four. The 12-hour dial is a relic of pre-revolutionary society, used to represent the desirable past; the 24-hour dial and time system is the compulsory standard imposed by the Party, and represents both conformity and the undesirable nature of the new world. This theme is famously set in the opening line: It was a bright cold day in April, and the clocks were striking thirteen. In the 1927 film Metropolis, the opening scene shows both a 24-hour analog clock and a 10-hour (decimal) analog clock, one above the other. Both are used to convey the impression of an alien and highly efficient society. In Jules Verne's science fiction masterpiece 20,000 Leagues Under the Sea, Captain Nemo remarks that the clocks in the Nautilus use a 24-hour dial: "Now, look at that clock: it's electric, it runs with an accuracy rivaling the finest chronometers. I've had it divided into twenty–four hours like Italian clocks, since neither day nor night, sun nor moon, exist for me, but only this artificial light that I import into the depths of the seas! See, right now it's ten o'clock in the morning." See also 24-hour clock Direction finding watch Sector clock References Further reading 24-hour clocks and watches