Casio Men’s G-Shock Black Resin Strap Watch | GA2100-1A1Casio GA2100-1A1 is a moderately sized Casio G-Shock watch. Casio GA2100-1A1 men’s G-Shock watch has a full array of features that inclue the following: shock resistant, 200 meter water resistant, auto LED light with afterglow, world time,...