Casio G-Shock GA-2100 is one of the four most iconic models

Casio has officially confirmed the G-Shock GA-2100 series is one of the four masterpieces of the G-Shock series.

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GA-2100-1A1ER, Grey Octagon series watch, Casio G-SHOCK

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Casio G-Shock GA-2100 is one of the four most iconic models

DW6900AP23-1, G-SHOCK DIGITAL Black

2100 Series is one of the four classic masterpieces of G-Shock

Casio G-Shock Classic Men's Watch GA-2100-1AER