Rolex GMT-Master II 40 mm 126710BLNROY1 Steel Black

The Rolex GMT-Master II is widely regarded as the definitive pilot's and traveler's watch, born from a 1954 collaboration between Rolex and Pan American World Airways that demanded a wristwatch capable of simultaneously displaying two time zones. Decades of refinement have made the GMT-Master II one of the most technically accomplished and visually iconic sports watches ever produced, and the reference 126710BLNROY1 represents the current-generation expression of that legacy in 40mm Oystersteel.

This particular reference, colloquially known as the 'Sprite' among collectors, is distinguished by its vivid black-and-red bidirectional 24-hour ceramic bezel insert — a colorway executed in Rolex's proprietary Cerachrom ceramic material that resists fading, scratching, and the effects of UV exposure over decades of wear. The graduated color transition of the bezel is achieved through a patented process that gives the watch an unmistakable wrist presence without sacrificing the technical legibility the GMT complication demands. The clean black dial, with its bold applied hour markers and Mercedes hands, ensures instant readability in any lighting condition.

The 40mm Oystersteel case continues Rolex's longstanding commitment to a case diameter that flatters a broad range of wrist sizes while maintaining the proportional balance that made the GMT-Master a design classic. Oystersteel, Rolex's designation for the 904L stainless steel alloy used exclusively across their Oyster collection, delivers superior corrosion resistance and a notably bright, lasting polish compared to the 316L steel used by most competitors. The Oyster bracelet, with its three-link construction and robust clasp, completes an integrated look that feels equally at home in a boardroom or on a long-haul flight.

Powering the 126710BLNROY1 is a Rolex automatic movement, continuing the brand's tradition of in-house mechanical excellence that underpins every GMT-Master II reference. The movement drives the independently settable 24-hour GMT hand — the watch's central complication — allowing the wearer to track a second time zone at a glance while keeping the local hour hand synchronized to a new timezone by simply jumping it in one-hour increments without disrupting the running of the minute or seconds hands.

Bizak & Co. is pleased to offer this certified authentic used Rolex GMT-Master II ref. 126710BLNROY1 to discerning buyers seeking one of the most collectible references in modern Rolex production. As a trusted pre-owned luxury watch dealer, Bizak & Co. thoroughly authenticates every timepiece before offering it for sale. We invite you to contact us or browse bizakandco.com to learn more, request additional photographs, or purchase this GMT-Master II online with full confidence.