Ref.116710BLNR The two-tone design was created to differentiate between daylight and nighttime hours in the second time zone, perfect for the world traveller. The Batman has a 40mm case made of stainless-steel with a monobloc middle case, a screw-down case back, a scratch-resistant sapphire and a winding crown. The 116710BLNR dial is a dark black with luminous hour markers and a blue GMT hand. The bezel is rotatable bidirectionally and is made of ceramic. and with a black blue design that features engraved numerals and graduations. The 116710BLNR is powered by the self-winding caliber 3186 and features a 24-hour hand to display a second time zone, date functionality as well as a power reserve of 50 hours.