An understated but substantial Rolex that covers all occasions, similar to a Milgauss, the Air King is one of the Rolex models built for purpose and withstood time and held that status. An air king is designed for the air as you can imagine, with additional protection against magnetism. A staple brushed steel bracelet the air king long received no updates until recently where the long awaited crown guard was introduced. Some are in favour of crown guards, some aren’t, leaving a tricky decision for a potential buyer but also an easy decision should it be a no-go to not have this protective design on your watch.