If I recall, this is the watch they refer to as the Barnacle diver. Case, dial, hands, and lume look to be in excellent condition. Too bad someone decided to strip that bezel insert. Another option you might consider is to see if any body out there might be able to print an overlay on some sort of clear adhesive material. I believe there are some aftermarket inserts available on ebay last I checked. They usually have a smaller lume pip which is a dead giveaway. If you want OE, you are going to have to search and be patient. Maybe an avid collector out there has one they are willing to let go of but be prepare to pay for it. Yahoo Japan is another option to search as there are a ton of nice vintage Seiko and Citizen on that site. Cool watch and good luck with the search.