The Casio G-Shock GBA900-1A is a rugged analog-digital watch engineered for training and active lifestyles. With G-Shock's signature shock resistance and water resistance, it's built to perform in tough environments while offering smart fitness support. The black resin band with buckle clasp ensures a secure and comfortable fit, and at just 61g, it's lightweight enough for all-day wear. Featuring Bluetooth connectivity, step tracking, stopwatch, countdown timer, alarms, and world time, the GBA900-1A blends modern training functionality with the legendary toughness of G-Shock, making it a reliable watch for workouts, outdoor use, and daily wear.