Casio Men's G-steel GST-W110D-1AJFProduct Highlights This watch receives standard radio waves from 6 stations around the world (2 in Japan, China, the USA, the UK, Germany) to automatically correct the time. Product Description By using different materials in the bezel section and creating a dual layer structure, a new shock resistant structure has been achieved. When metal (stainless steel) is used on the upper part of the bezel, a resin acts as a cushion on the lower part.