Is this your watch below?
It's the only reference to a Hamilton Saville I could find on the swamp. If so, looks like a 1980's quartz model. This would have been made the the Swatch group, which bought Hamilton in the 70's. If not, you will be able to get more information from those that frequent this forum by posting a photo of your watch. Instructions on how to post photos should be in one of the trends at the top of the forum page.