I have purchased a Used Rolex Airking watch from Crown and Caliber. Excellent condition, competitive price. A fine watch is a big investment. It is reassuring to have an ethical seller who has verified the originality and function of the watch and is willing to stand behind that evaluation with a generous return policy and a one year warranty. Do the research, but if you are in the market for gently used fine watches, check out Crown and Caliber. You will be glad you did!