Casio G-SHOCK G-STEEL GST-S100G – Black A solid and stylish Casio G-SHOCK from the G-STEEL series, combining metal and resin for excellent durability and a premium look. This model features Tough Solar technology, shock resistance, and 200m water resistance — a perfect balance of functionality and design. Condition: Very Good. Only minor signs of use. The watch has been carefully stored and remains in excellent working and visual condition. Battery is solar-powered and functions properly. Secure packaging and careful shipping guaranteed. G-SHOCK, Casio G-STEEL, GST-S100G, G-Shock solar, G-Shock black, Casio men’s watch, G-Steel tough solar, G-Shock analog digital, G-Shock Japan, Casio G-Shock GST, G-Steel series