Rolex GMT Master II 126710BLNR Batgirl JubileeOverview When Rolex introduced the 126710BLNR (the Batgirl) in 2019, the visible change from the 116710BLNR was the Jubilee bracelet. The actual change was the watch's position. The blue and black BLNR configuration was already established in the market it was the bracelet that shifted the reference from tool watch to something that wears across contexts without announcing a choice. The case is 40mm Oystersteel with the standard GMT Master II