Rolex
GMT-Master II
126710GRNR
The GMT-Master II refined — Oystersteel, black dial, and the calibre 3285.
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Overview
The Rolex GMT-Master II reference 126710GRNR represents the current generation of Rolex's storied dual-timezone sports watch, presented in a 40 mm Oystersteel case with a black dial. Introduced in 2024, it carries the calibre 3285 movement and continues the long-running GMT-Master II tradition of combining professional utility with enduring design. The reference sits within a lineage that traces its origins to the mid-twentieth century, when the GMT-Master was developed to meet the demands of long-haul aviation.
History
The GMT-Master line was originally conceived in close collaboration with the aviation industry, providing pilots and crew with a reliable means of tracking two time zones simultaneously via a rotating 24-hour bezel and a dedicated fourth hand. Over successive decades, the GMT-Master II — introduced in the 1980s — refined the concept by allowing the local hour hand to be set independently of the GMT hand, a significant practical advancement. The 126710GRNR designation places this reference firmly in the modern era of the line, benefiting from Rolex's in-house movement development and the incremental case and bracelet refinements that have accumulated across generations. Collectors regard the GMT-Master II as one of the most recognisable and historically grounded references in the Rolex sports catalogue.
Notable points
- Powered by the calibre 3285, Rolex's in-house movement featuring the Chronergy escapement, a 70-hour power reserve, and Parachrom hairspring for enhanced resistance to shocks and magnetic fields.
- The 40 mm Oystersteel case maintains the proportions long associated with the GMT-Master II, offering broad wrist presence without departing from the line's established silhouette.
- The black dial provides high legibility against the bezel's 24-hour scale, a pairing that echoes some of the most historically significant GMT-Master configurations.
- As a 2024-introduced reference, the 126710GRNR reflects Rolex's current manufacturing and finishing standards, including the Oyster bracelet with the Oysterlock safety clasp and Easylink comfort extension.
- The independently adjustable local hour hand — the defining functional feature of the GMT-Master II — allows the wearer to reset local time in one-hour increments without disturbing the running seconds or the GMT reference hand.
