I think the title is The Girl, the Gold Watch [two words], and Everything. Sounds VERY familiar, and I'm pretty sure I read it around that same time you first bought it.
Speaking of old books, I've been on an Edgar Rice Burroughs kick lately. Not the Tarzan books, but the John Carter on Mars series, the Carson of Venus series, and some lesser-known books such as Cave Girl, Jungle Girl, the Center of the Earth series, and a few others. They are difficult to find as e-books in the U.S. because Burroughs' heirs have done an end run around the copyright laws. The books are old enough and ERB has been dead long enough that the copyrights have all expired. So his heirs have registered the titles and the main characters as trademarks.
I discovered completely by accident that, while this ploy worked in the U.S., it didn't work in Australia, and the books are available as free downloads from the Gutenberg Project Australia.