Rolex Oyster Perpetual Sky-Dweller Ref 326938. 42mm diameter Yellow Gold case, which is water resistant to 100m / 330ft. Automatic chronometer Rolex 9001 calibre movement, 28,800, 40 jewels and a power reserve of 72 hours. Paramagnetic Blue Paracrom hairspring and high performance Paraflex shock absorbers. Silver dial with Roman numeral hour markers, 12 apertures around the edge of the dial to indicate the month, centre disk indicates 24 hour display and date at 3 o’clock. Functions: Saros system Annual Calendar, GMT, Month, date, hours, minutes, seconds. Fluted bi-directional Ring Command bezel. 18ct Yellow gold Oyster lock bracelet. Box and papers dated August 2016.