This is a Seiko Goldfeather hand-wound wristwatch, which was the thinnest in the world when it was first released. This Seiko Goldfeather is the model that the recent Credor re-edition was based on. I was planning to maintain it as part of my collection, but I haven't been able to get around to it, so I'm putting it up for sale. The dial has some clouding, but the case, crystal, and back cover have become quite clean just by polishing them with a polishing cloth. The leather strap is new and made of cowhide with a crocodile pattern. The movement is running, but it's not in good condition, so it needs to be overhauled by a specialist before daily use.