A casual style with bold detailing at an affordable price, the Eco-Drive PRT style truly represents the every day watch. Displayed in a blue-tone stainless steel case, navy blue/grey striped nato strap and blue dial with slight stripe detailing. Featuring 8-month power reserve indicator, cyclops date magnifier and date. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number J850.