The Rolex Oyster Perpetual Air King (ref. 116900-0001) is a men's pilot's watch with a 40 mm round case in stainless steel. It has a black dial under sapphire crystal.
It is powered by the self-winding mechanical calibre 3131 with a power reserve of 48 hours. Features: Anti-magnetic protection, chromalight luminescent coating, screw-down crown, green seconds hand, contrasting minute track. Water-resistant to 100 m. The watch is fitted with an Oyster bracelet with an Oysterclasp in steel.
This example is pre-owned and in good condition, and comes with the original box and papers.