Asking $770 shipped USA Up for sale is a 1950s Tudor Oyster Prince 7809 with a caliber 390. The watch measures about 35mm in diameter, and the watch has the original radium dial and hands. The case unfortunately has been polished - the top of the lugs now have a mirror finish and the sides have a brushed finish. The caseback also shows signs of polishing. The watch runs ok, but I would recommend a service if to be used daily. It comes on a 19mm blue textured strap. If you have any questions, feel free to pm me!