Omega Speedmaster watches carry a serious reputation. Originally built as a racing chronograph, the model quickly evolved into the official watch of NASA and the first timepiece worn on the moon. If you are looking to skip the retail wait, this page is the best place to shop pre-owned Omega Speedmaster watches for sale online. We carry a large inventory of certified authentic, pre-owned models that are ready for immediate purchase. Whether you want a classic Moonwatch or a modern variant, buying a pre-owned Speedmaster gets this historic chronograph on your wrist right now.