Rolex GMT Master II 40 mm 116710BLNR Steel Black

The Rolex GMT-Master II is one of the most storied tool watches in horological history, originally developed in the 1950s in collaboration with Pan American World Airways to allow pilots and navigators to read two time zones simultaneously. Over the decades, the GMT-Master II evolved from a purely professional instrument into one of the most universally coveted luxury sport watches in the world—blending rugged functionality with refined Rolex craftsmanship. Reference 116710BLNR represents a landmark chapter in that evolution, introducing the now-legendary black and blue CERACHROM ceramic bezel that earned the watch its enduring nickname: the Batman.

The 40mm Oystersteel case of the 116710BLNR is a masterclass in Rolex proportions. Oystersteel, Rolex's proprietary 904L stainless steel alloy, is significantly more resistant to corrosion and polishing than the 316L steel used by most of the industry, ensuring that the case and the three-link Oyster bracelet maintain their luster and structural integrity for decades of daily wear. The case is water resistant to 100 meters (330 feet), protected by the renowned Oyster case architecture with its screw-down Triplock winding crown.

The bidirectional rotatable bezel is fitted with Rolex's CERACHROM insert, crafted in a single piece of virtually scratch-proof ceramic in two colors—black for the PM hours and rich blue for the AM hours. The CERACHROM material is highly resistant to UV fading and corrosion, meaning the colors will remain vivid and the numerals and graduations crisp for the lifetime of the watch. The clean black dial beneath it is dressed with luminescent Mercedes hands and hour markers, ensuring exceptional legibility in any light condition—day or night, at sea level or 30,000 feet.

Powering the 116710BLNR is Rolex's automatic movement, a self-winding caliber renowned for its reliability, precision, and Superlative Chronometer certification—meaning each watch is tested by Rolex to achieve accuracy of −2/+2 seconds per day, a standard far tighter than the official COSC benchmark. The movement features an independently adjustable GMT hand, allowing the wearer to set a second time zone simply by advancing or retarding the dedicated red-tipped hand in one-hour increments without disturbing the running of the local time.

On the wrist, the GMT-Master II 116710BLNR makes an unmistakable statement. The 40mm case diameter sits at the sweet spot of sport-watch sizing—substantial without overpowering, proportioned for a wide range of wrist sizes. The Oyster bracelet with its Oysterclasp and Easylink comfort extension provides a secure, refined fit. Whether worn against a business shirt cuff or a casual sleeve, the Batman's dual-tone bezel commands attention while retaining every ounce of professional tool-watch credibility.

Bizak & Co. is pleased to offer this certified authentic, brand-new Rolex GMT-Master II reference 116710BLNR for sale online. As an experienced luxury watch dealer, Bizak & Co. stands behind the authenticity and quality of every timepiece in our inventory. The 116710BLNR has consistently demonstrated strong collector demand and long-term value retention, making it not only a pleasure to wear but a compelling acquisition for any serious watch enthusiast. Browse our inventory at bizakandco.com or reach out directly—our team is ready to assist you in securing this exceptional watch.