An elegant watch for frequent travellers, the Sky-Dweller displays the time in two time zones simultaneously and has an annual calendar. The reference time, in 24-hour format, is shown via an off-centre disc, and the local time is read using conventional centre hands. The annual calendar, named Saros, automatically differentiates between 30- and 31-day months. It is operated by a patented mechanism and stands out for its innovative display: the months of the year are indicated in 12 apertures around the circumference of the dial, with the current month marked in red. The instantaneous date change is linked to the local time.

See More Information at https://presale.clubrare.com/006-rolex-oyster-perpetual-sky-dweller