The Oyster Perpetual Air-King pays tribute to the pioneers of flight and the Rolex Oyster’s role in the epic story of aviation. With its 40 mm case in Oystersteel and distinctive black dial combining large 3, 6 and 9 hour numerals with a prominent minutes scale for optimal navigational time readings, the Air-King perpetuates the aeronautical heritage of the original Rolex Oyster.