Aviation Heritage The Air-King has long symbolised Rolexs historic relationship with aviation, dating back to the 1930s. This updated 2020 model, with black dial, accents in Rolex green and signature 3, 6, and 9 Roman numerals, pays tribute to the golden age of flight and the brands legacy of precision timekeeping in the skies. Enduring Aesthetics This reference 116900 features a 40mm Oystersteel case with a smooth bezel and is powered by the calibre 3131 automatic movement with a 48-hour power reserve. The black dial is framed by a prominent minute scale in Arabic numerals and paired with the classic three-link Oyster bracelet. A modern evolution of an historic pilots watch.