Rare Seiko prospect kinetic/automatic GMT watch. Model number SUN019 In great, working condition. I do not have original boxes or papers. It is kinetic powered meaning it works like an automatic watch, as it has a weight on the inside of the case that winds up and powers the watch, but instead of winding a spring, it powers a battery, like an alternator in a car, and charges the battery that powers the watch. It is a large watch. It’s 50mm in total size. It has 24mm bands. Comes with all the links on the bracelet.