Description: Rolex GMT-Master II ref 16710 Pre-owned Rolex GMT-Master II ref 16710 (2004) is one of the most important modern references in the lineup. Introduced in the late 1980s as the second generation of the GMT-Master II, it refined the formula with a slimmer case and updated movement, making it more comfortable on the wrist than earlier models. It also marks the end of an era, as it was the last GMT-Master II to feature aluminum bezels before Rolex switched to ceramic.