IWC Portugieser Tourbillon Mystere Limited Edition (IW504204) self - winding automatic watch, features a 44.2mm platinum case surrounding a silver dial on a black alligator strap with a platinum deplyant buckle. Functions include hours, minutes, small seconds, power reserve indicator and tourbillon. This watch has been serviced and comes complete with box and papers. This is a Limited Edition piece of 50!