The Rolex Air-King is a watch that was first introduced in 1945. It was designed for pilots and was one of the first watches to be certified by the Civil Aviation Authority. The Air-King is still in production today and is a popular choice for those looking for a vintage Rolex watch. The Air-King is a simple watch with a clean design. It is available in a variety of different metals and can be fitted with a variety of different straps.