Global Functionality The Sky-Dweller is Rolexs most complex timepiece, designed for those who navigate multiple time zones. With its dual time display and annual calendar, it offers intuitive control and exceptional clarity for frequent travellers. Technical Sophistication This 2018 reference features a 42mm case with a fluted rotatable bezel and a white dial. It is powered by the calibre 9001 automatic movement, offering approximately 72 hours of power reserve. The Oyster bracelet is secured with an Easylink Oysterclasp, ensuring comfort and adjustability throughout the day.