GST-B200B-1A is a G-STEEL model featuring a carbon core guard structure with a black ion-plated stainless steel bezel and a black resin strap, delivering a bold and technical aesthetic. The analog-digital display is set against a black dial with layered detailing for depth and clarity. Equipped with Tough Solar power and Bluetooth connectivity for smartphone linking, it ensures accurate timekeeping and convenient functionality. Shock resistance and 200-meter water resistance provide dependable durability, while mineral glass protects the dial. Confirmed features include world time, stopwatch, countdown timer, daily alarms, and a double LED light for enhanced visibility in low-light conditions.