Amazon.com: CASIO GWG-2000-1A3JF [G-Shock Carbon MUDMASTER,G2310R-1 | G-SHOCK Tough Solar Model Watch,Amazon.com: G-Shock Casio Master of G Air Gravitymaster,Amazon.com: Casio G-Shock GWG-B1000-1A4JF Master of G Series,Amazon.com: CASIO GWG-2000-1A3JF [G-Shock Carbon MUDMASTER,