Casio G-Shock GA-2100 is one of the four most iconic models
Original Casio G-Shock GA-2100-1A Men's Watch Black | Men's watches \ Color \ Other Colors Watch brands \ Casio G-shock \ Analog Digital \ Standard Men's watches \ Style \ Casual Men's
GM-2100 Octogan Series| Metal Covered GA-2100 | Casio G-SHOCK