Description: Rolex GMT-Master II ref 116710 Pre-owned Rolex GMT-Master II ref 116710BLNR (2018). When Rolex introduced the BLNR in 2013, it quietly marked a major technical milestone for the brand. This was the first Rolex ever outfitted with a two-tone Cerachrom ceramic bezel, combining deep black and electric blue in a single, scratch-resistant insert. Collectors quickly nicknamed it the “Batman,” and it remains one of the most recognizable GMTs of the modern era.