Sold Grand Seiko GS Full original 5645-7010 The serial number starts with 09, so it's likely made in September 1970? I think it's in good condition for a 55-year-old watch. The original metal bracelet is also clean for its age, and these bracelets are rare, so most people use leather bands. There are no stains or discoloration on the dial. The medallion on the back is also beautifully preserved. Working properly It will break immediately if you advance the date at midnight, so it's best not to do that. You'll see if you look around, but I don't think you'll find one this clean very often, so get it before it disappears from the market. I may stop the listing if I change my mind. I hope to sell it to someone who loves Seiko vintage watches. Thank you.