GMT; Greenwich mean time; Greenwich Standard Time; Grenwich Mean Time; Greenwich mean Time; GMT Time; Gmt; Greenwich Mean time; British Mean Time; London Mean Time; Coordinated Greenwich Mean Time; GreenwichMeanTime.com; Greenwichmeantime.com; Grenwhich Mean Time; Morocco Standard Time; GMT Standard Time; GMT Daylight Time
The Rolex Oyster Perpetual Date GMT Master is part of the Rolex Professional Watch Collection. Designed in collaboration with the now defunct Pan American Airways of the United States for use by their pilots and navigators, it was launched in 1954.