The Rolex GMT-Master is well known in the vintage watch world and easily identifiable by its blue and gree Pepsi bezel. The GMT was developed by Rolex with the help of PanAm to help their pilots keep track of multiple time zones during flight. This beautiful Rolex GMT-Master Ref. 1675 was produced in 1977 and has a 5.17 million serial number. The watch is in excellent condition, with a fantastic case with wide chamfers on the lugs, a stunning clean dial, and all original parts.