Rolex, GMT-Master, "Long E , Mark I".
For condition report contact specialist
Case size: 40 mm
Material: steel
Movement: automatic, caliber 1570
Year: circa 1968
Crystal: plastic crystal
Bracelet: Oyster bracelet, folding clasp, ref. 7836-1.72/280
Reference number: 1675
Serial number: 1'826'974
Movement number: D'468'463
Case number: 1675/I.68
Relumed dial.
The movement is running at the time of cataloging. Please note that the movement has not been tested for timekeeping accuracy and may need a service at the buyer's expense. Watches have been opened to examine movements therefore no warranties are made that the watches are water-resistant. Potential buyers should inspect each watch to satisfy themselves as to condition.
For more information, please read our Conditions of Purchase.
More information
The Rolex GMT Master was developed in cooperation with Pan Am. As in the 1940s and 50s flying distances got longer and the pilots travelled through multiple time zones, Pan Am asked Rolex in the 1950s to develop a watch which could tell different times simultaneously.
The watch was designed as an aviator watch and the newly introduced fourth hand allowed the display of an additional time, with the corresponding numbermarkings on the outer bezel. Pilots used the second time to display the Greenwich Mean Time (GMT), which led to the name Rolex GMT-Master.