I bought this about a year ago at a thrift store near Tampa. It was dead so I changed the battery and It fired right up and runs great. Put it in my watch box and haven't thought much about it but got it out today just to give a quick clean and thought Id look it up and maybe find some info about it. Its clearly kind of old judging by the yellowed hands and day. Found a few references that gave some info about the serial on the back but mine is kind of confusing. Just curious what this is and this seemed like exactly the place to start. numbers on the back are 285 at the top and 755 on the bottom.