Developed to accommodate those with a globetrotting lifestyle, the Rolex Sky Dweller is fully equipped to help you keep perfect time in any time zone. The 18 karat white gold 42mm Oyster case is a marvel of modern watch making and boasts a Twinlock screw-down crown, scratch-resistant sapphire crystal, and a sloped fluted ring command bezel. Designed with three positions, the ring command bezel can be adjusted to set various functions displayed on the dial. The first position allows the wearer to adjust the 24-hour subdial to track local and home times. The second position allows the wearer to adjust the current time. Finally, the third position allows the wearer to adjust the date aperture as well as the calendar function. Within the case lies a Swiss certified calibre 9001 chronometer with a free sprung escapement, Paramagnetic blue Parachrom hairspring, and a 72-hour power reserve. Rolex's Oysterclasp with Easylink Extension system accompanies the Oyster bracelet, providing the perfect fit without the use of tools. Introduced at Basel 2014, the Sky Dweller has since captivated the watch world with its incredible style, high functionality, and wearability.