G-Shock GA-2100-1AER Black Resin Strap Watch

G-Shock GA-2100-1AER Black Resin Strap Watch, a slim, tough hybrid of analogue and digital design. The 48.5mm carbon/resin case features a Carbon Core Guard structure for shock resistance, 200 m water resistance, and a durable resin band (fits 145–215 mm wrists). Powered by two SR726W batteries (approx. 3-year life), it combines world time (31 zones), 1/100-second stopwatch, countdown timer, five alarms, double LED light with afterglow, full auto-calendar, and hand shift function. Mineral glass protects the dial while a lightweight 51 g construction keeps it comfortable—built for style, performance, and everyday toughness.