Travel in Style The Sky-Dweller is Rolexs most advanced timepiece, designed for those who move between time zones with ease. With its dual time display and annual calendar, it offers intuitive functionality in a bold, elegant form. An Updated Classic This 2015 Rolex Certified Pre-Owned Sky-Dweller, reference 326138, features a silver dial, fluted bezel and 18ct yellow gold case. The alligator leather strap and Oysterlock clasp ensure a secure fit, while the calibre 9001 movement delivers a 72-hour power reserve.