"The Sector GMT is the perfect travel partner, armed with a fourth hand to track two time zones in an intuitive manner. With a fast-set jumping-GMT hand, the Sector GMT is able to quickly move through time zones. Originally, "GMT" stood for Greenwich Mean Time, as British Naval fleets coordinated their on-board chronometers with Greenwich, London. Over time, the term has evolved to become any watch that has a fourth GMT hand that tracks a 24 hour time-scale. The Sector GMT is designed and assembled in Los Angeles."