This casio g-shock digital-analog watch offers a handsome rugged design and impressive 10-year battery life. Black dial with luminous silver-toned hands and markers, red and green accents, digital display 52. 0mm bio-based green resin case with mineral crystal shock resistant with carbon core guard structure features include world time, countdown timer, full auto-calendar, stopwatch, daily alarms, and super illuminator led light japanese quartz and digital movement green bio-based resin strap; buckle clasp water resistant to 200 meters we are an authorized casio dealer