When the Pan-Am company needed a watch that could display multiple time zones simultaneously Rolex was able to deliver. Having a watch that kept good time was a necessity for pilots in those days. Pan-Am pilots were not the only men in the air wearing these watches, however. NASA, US Air Force pilots and traveling business people all adopted the watch.
Throughout history celebrities have been spotted wearing the Rolex GMT. Tom Selleck wore a Pepsi bezel GMT when he played Magnum P.I. Gonzo author Hunter S. Thompson would wear two GMTs. One showed the time in Havana, the other in Moscow. Jack Swigert wore one on Apollo 13, and Ed Mitchell during the Apollo 14 moon landing.
Beginning in 1989, the Reference 16710 replaced the ref. 16760 featuring a slimmer case design with a similar caliber movement. Rolex introduces no holes case starting (late Y-series) in 2003. This one is a "no-hole" in FULL SET and in "near to new" shape.