Info needed: vintage, solid gold cal. 8531
By: Emiel : June 25th, 2021-15:21
A gentleman who knows I'm into watches came by with this beautiful IWC. I think it's gorgeous! Looks to be early 60ties, with a stunning bracelet, calibre 8531, 18ct solid gold, 34mm, I believe ref. 603, but I'm not sure. Can anyone shed some more light o...