The Rolex GMT-Master II reference 116710BLNR, famously nicknamed "Batman" due to its distinctive blue and black Cerachrom bezel, was unveiled at Baselworld 2013. This model features a 40mm Oyster case made from durable 904L stainless steel and is powered by the automatic Caliber 3186 movement. The patented bi-color ceramic bezel was a significant technological achievement, with its numerals crafted from a thin layer of platinum. The black dial features luminous Chromalight hour markers and hands, and a blue 24-hour GMT hand. It is fitted with an Oyster bracelet with polished center links and an Easylink 5mm comfort extension clasp. The watch offers a water resistance of 100 meters and a power reserve of approximately 48 hours.