The calibre 9001 self-winding Rolex sky watch has an amazing power reserve of 72 hours and is water resistant upto 100m. The Rolex sky dweller watch has a white coloured dial with a stainless steel and white gold case. This provides a beautiful and classy finish to this Rolex masterpiece. The bracelet, made of oyster-steel and 18 carat gold features a system which allows the user to extend the length of the bracelet my approximately 5mm. What sets the watch apart is an off-centre disc which shows the time in the second time zone chosen by the user in the 24 hour format. The fluted white gold bezel helps the user to set the local time, the second time zone and the date on the watch.