Casio Men's G-STEEL Radio Solar Middle Size GST-W300-1AJFProduct Highlights While maintaining the traditional Layer Guard structure and functions, we have achieved a downsizing of approximately 90% for the entire case. The significant reduction in module size allows for downsizing and slimming of the case, resulting in a mid size design. We pay attention to detail in finishing, with resin made indexes that withstand impact, achieved through laser cutting of the deposited film on the surface, creating a face