Rolex GMT-Master II 40 mm 126710BLNR1 Steel Black

The Rolex GMT-Master II 126710BLNR1 — widely known among collectors as the "Batman" — is the definitive modern interpretation of Rolex's legendary pilot and traveler's watch. Introduced in the 126710BLNR reference generation, it builds on a lineage stretching back to 1955 when Rolex developed the original GMT-Master in collaboration with Pan American World Airways to meet the needs of long-haul aviators. Today the GMT-Master II stands as one of the most recognized and coveted sport-luxury watches in the world, and the 126710BLNR1 variant holds a particularly special place in that story.

At the heart of the 126710BLNR1's appeal is its striking black-and-blue bidirectional 24-hour ceramic bezel — the hallmark that earned this configuration the "Batman" nickname from collectors worldwide. The bezel insert is crafted from Rolex's proprietary Cerachrom ceramic, a material virtually impervious to scratches and UV fading, ensuring the two-tone color remains vivid for decades of wear. Paired with the crisp black dial, the contrast between the deep midnight-blue and jet-black bezel sections creates a visual drama that few sport watches can match.

The 40mm oyster-grade stainless steel case is finished to Rolex's exacting standards, blending polished and brushed surfaces that catch the light from multiple angles. What sets the 126710BLNR1 apart from its predecessor, the 116710BLNR, is the addition of the five-link Jubilee bracelet — a detail previously reserved for the Datejust family and never before offered on a GMT-Master II until this generation. The Jubilee bracelet lends an air of elegant versatility, allowing the watch to transition seamlessly from a boardroom presentation to a transatlantic flight. Water resistance is rated to 100 meters (330 feet), consistent with Rolex Oyster case standards and appropriate for everyday active wear.

Powering the watch is Rolex's automatic in-house movement, which drives the independently adjustable 24-hour GMT hand — the functional core of the GMT-Master II concept. This mechanism allows the wearer to track a second time zone simply by setting the GMT hand and reading it against the 24-hour bezel, while the local time is adjusted freely without disrupting the GMT reference. The movement represents the current generation of Rolex GMT caliber technology and benefits from Rolex's certification for precision, reliability, and long-term serviceability.

On the wrist, the 126710BLNR1 offers a balanced, confident presence. At 40mm the case is neither oversized nor understated — it wears as a true all-day, all-occasion companion for a wide range of wrist sizes. The Jubilee bracelet adds a subtle refinement that distinguishes this reference from the sportier Oyster-bracelet GMT variants, and the combination of ceramic bezel and polished steel gives the watch an almost timeless quality that ensures it will remain relevant well beyond current trends.

Bizak & Co. is pleased to offer this certified authentic pre-owned Rolex GMT-Master II 126710BLNR1 for sale. Every watch we list undergoes careful authentication and inspection before being made available to our clients. Purchasing a pre-owned Rolex GMT-Master II from Bizak & Co. is an opportunity to acquire one of horology's most enduring icons at a compelling value. Contact our team directly with any questions, or browse our full collection of pre-owned Rolex watches online at bizakandco.com.