I was pointed to this thread because I posted a question about my Sears bike that is very similar to yours. I really wish mine was a men's bike not a ladies' bike, but yeah. The serial number on mine starts with 462 like yours does. I can't read many of the other characters on yours in the pic.

I would hope that if one did a search on here for the word "Sears" my post from last night would show up.