Today, we are reporting live from Baselworld 2016 and Rolex is introducing a new Oyster Perpetual Air-King, a watch that perpetuates the aeronautical heritage of the original Rolex Oyster. The new Air-King, with a 40 mm case in 904L steel, features a distinctive black dial with a combination of large 3, 6 and 9 numerals marking the hours and a prominent minute scale for navigational time readings.