Rolex GMT Master (Pepsi) Ref 16700 Year 1989 Reference number 16700 Case diameter 40mm Year of production 1989 Condition - used (immaculate) Rolex Box Watchfinder authentication and warranty card. Watchfinder bill of sale from 2010. The Rolex GMT-Master was originally introduced in 1955, developed in collaboration with Pan Am Airways to assist pilots with tracking two time zones. By the time the reference 16700 launched in 1988, it had become a beloved tool watch for aviators and globetrotters alike. Produced until 1999, the 16700 marks the final iteration of the original GMT-Master before the full transition to the GMT-Master II line. Bought from family friend Any Questions please ask.