I have only been collecting watches for about 6 years,but I have spent a lot of that time searching Ebay,antique shops,flea markets,and anywhere else that I might find old watches. I have several that are the only ones like them that I have ever seen. I know I must not own the only ones like these that exist. These are some of them. New York Standard 18 size key wind/key set. US Watch Co. 18 size with acid etched movement. And what David informed me is a New York Standard ring gear watch. Any one else own any watches like these,or have any one ofs of their own?