GST-S130BC-1A is a G-STEEL analog-digital model featuring a stainless steel bezel layered over a resin case, paired with a black resin band for a strong yet comfortable build. The black dial with metallic accents delivers a bold industrial look while maintaining everyday versatility. Powered by Tough Solar, it converts light into energy for reliable performance. Shock resistance and 200-meter water resistance ensure dependable durability, while mineral glass protects the display. Confirmed functions include world time, stopwatch, countdown timer, multiple daily alarms, and a double LED light for clear visibility in low-light conditions.