More than a pretty face with a giant ego, the 51-30 Chrono is the ultimate statement piece that bridges the gap between fashion and function. With a new refined movement, it commands the room at first glance with an oversized face, boldly printed indices and custom-molded hands. This is the OG of big-time style. Features. Dive-ready 300m water resistance and solid stainless steel construction make the 51-30 Chrono one of the burliest pieces in the line. Materials. Updated Miyota-OS20 Japanese quartz 6 hand chronograph with date and a 9-hour crown and pusher placement. Care. Dish soap and warm water. Colour: metallic