Global Utility The Rolex GMT-Master II was developed for international travellers and professionals needing to track multiple time zones. Originally designed in collaboration with airline pilots, it has become a symbol of precision and cosmopolitan style. Dual-Time Precision This 2008 reference 116713LN features a 40mm case in Oystersteel and Yellow Gold, with a black dial and rotatable 24-hour bezel. Powered by the calibre 3186 automatic movement, it offers a 48-hour power reserve. The Oyster bracelet is secured with an Oysterlock clasp and Easylink extension for added functionality.