Price of my Men's President

[serpee]

Hi, I have a men's President from around 1979-1980. I also have the original paper with the serial number etched into the paper. I'd say it's in fair to good shape and only needs a good cleaning to remove the scratch marks from the bezel and band. What can I expect to get for this and where should I try to sell it.

Thanks so much for your help.

Jay