GST-S300G-1A is a G-STEEL model featuring a black ion-plated stainless steel bezel layered over a resin case, paired with a black resin strap for a bold and durable construction. The analog-digital display is set against a black dial with gold-tone accents, offering strong contrast and a refined industrial aesthetic. Powered by Tough Solar, it converts light into energy for reliable performance, while shock resistance and 200-meter water resistance ensure everyday toughness. Protected by mineral glass, it includes world time, stopwatch, countdown timer, multiple daily alarms, and a double LED light for clear visibility in low-light conditions.