PRX Powermatic 80PRX collection power re imagined Luxurious design Water resistant up to 10 bar (100 meters) Slim 40mm stainless steel case Powered by the Powermatic 80 movement with an 80 hour power reserve CLASSIC ELEGANCE Creating elegant and timeless watches since 1853, Tissot has remained at the forefront of the evolution of fashion. Adorning the wrists of celebrities and royalty, throughout recent history Tissot watches have been a symbol of luxury and style.