CASIO G-SHOCK FROGMAN FROGMAN CASIO GWF-1000-1JF MASTER OF G　FROGMAN This is a radio-controlled, solar-powered model from the G-SHOCK "FROGMAN" series, equipped with ISO 200m diving water resistance to support underwater missions. It features ISO 200m diving water resistance and receives standard radio waves from 6 stations worldwide. It also includes log data memory, tide graph, and moon data functions. The stopwatch operation buttons have been enlarged for reliable operation underwater. The full-auto EL backlight illuminates the LCD brightly just by tilting your wrist during diving. The protection cover, band, and bezel are secured with screws from the sides to improve shock resistance, and the band has a smooth shape for a comfortable fit. Machined stainless steel is used for the front screws on the bezel top, and machined high-brightness aluminum is used for the edging of the circular display on the dial. The screw-back metal case is DLC-treated and finished with a mirror polish.