CASIO G-SHOCK - GST-B400's Impeccable design comes with tough solar power and Bluetooth connectivity. #gstb400 #gsteel #gshockwatch #shockresist #watchoftheday #watchesofinstagram #challengethelimits #absolutetoughness #gshock | Facebook
GSTB400 Series Men's Luxury Watches Collection | G-SHOCK | CASIO