The Rolex GMT-Master II reference OYS-ST-S-GMT is a 15.5mm timepiece in Steel presented in unworn condition. Every watch is inspected and authenticated by our specialists before it is offered, so you can buy with confidence.
Collectors gravitate to this reference for good reason. The GMT-Master II is the most coveted sport Rolex on the secondary market, and bezel colorway is the primary value driver. Sprite currently sits above Batman. Two-tone steel and yellow-gold examples like the 16713 trade at a discount to full-steel while drawing a distinct collector segment. We guide you toward the right fit and confirm every detail first. Read the full GMT-Master II buying guide ›
Precision and durability defined Rolex long before it became a financial asset class. The brand pioneered waterproofing, self-winding movements, and the date display from its Geneva manufacture, founded by Hans Wilsdorf in 1905. We guide buyers through what counts: the Oyster case, Perpetual movement, and Cyclops lens. Because steel models like the Submariner, GMT-Master II, and Daytona frequently sell above retail, careful in-house checks protect your purchase. Browse all Rolex ›
Rolex · OYS-ST-S-GMT
A 15.5mm Steel Rolex GMT-Master II — authenticated and ready to wear.

