G Shock Carbon Core Guard,47KB,Casio G-shock Carbon Core Guard Men's Watch. Model: GA-B001-1A # Case Size 42.5mm # Movement Japan # Band Material Resin # Water Resistant 200m/660 feet # Approx. Battery life 2 Years. # Double LED Light,G-Shock Classic Style GA-B2100-1A1ER Carbon Core Guard Watch,G-SHOCK GAB2100CD-1A4 Charles Darwin Foundation Watch