The GMT-Master II ref. 116710BLNR, was the first Rolex model to feature a bi-colour cerachrom bezel. This final production of the "Batman", fitted with Rolex Oyster bracelet with Fliplock clasp, is a shrewd investment. Only produced in steel, this 40mm GMT sports the bi-directional 24-hour bezel, and features the highly legible black dial with bright-glowing Chromalight hands & hour markers. Accompanied by its Rolex box, booklet, instruction manual, Chronometer tag and international guarantee dated October 2019. The most iconic dual-time watch to date is waterproof to 100m, and powered by Rolex's self-winding calibre 3186, with a generous 50hr power-reserve.