Accompanied by Rolex Official Chronometer Certification stamped Tiffany & Co., original sales tag, Tiffany & Co. blue velvet presentation box and outer turquoise cardboard packaging.
The GMT-Master model was developed on request of Pan Am when the company started transatlantic flights with jet aircrafts in 1956. Travellers appreciated the fact that the journey times were reduced from 13 hours to 7 but suffered from a new phenomenon, the jet lag. Pan Am was worried about the possible effects on its pilots and, after researches, advised them to keep on "home" time while away from base. As at the same time they needed to know the local time, a joint task force from Pan Am and Rolex was assigned. The team produced the "G.M.T. Master", named after the world's standard time, the Greenwich Mean Time.