Rolex GMT-Master II Oystersteel — Black Dial, Blue/Black Cerachrom Bezel | Ref. 126710BLNR

The reference 126710BLNR — known affectionately in collector circles as the "Batman" — stands as one of the defining sports watches of the modern era. Introduced at Baselworld 2013, it marked the first GMT-Master II to pair the iconic two-tone blue and black Cerachrom bezel insert with an Oystersteel case, delivering a tool watch with undeniable visual drama. The clean black dial anchors the palette, while luminescent Chromalight hour markers ensure legibility in any light condition.

At the heart of the 126710BLNR beats Rolex's Calibre 3285, a manufacture movement representing the apex of in-house GMT engineering. The 3285 offers a 70-hour power reserve, a variable inertia balance wheel regulated by a micro-adjustable Chronergy escapement, and a rapid-set GMT hand function that allows the wearer to independently adjust the local hour hand without disturbing the running seconds — an essential complication for frequent travellers. Certified as a Superlative Chronometer, it maintains accuracy to ±2 seconds per day in everyday wear.

The 2024 production date on this example means it arrives with the full complement of current Rolex manufacture standards. Presented complete with box and papers, it is among the most sought-after references in the modern Rolex catalogue — a watch that commands waitlists at authorised dealers and consistently holds its value on the secondary market. Whether acquired as a travel companion or as the cornerstone of a serious sports-watch collection, the Batman remains a benchmark of purposeful, enduring design.