This rugged and versatile casio g-shock men's hybrid watch is designed for the active lifestyle. Black dial with hybrid display 51. 9mm black bio-based carbon and bio-based resin case; mineral crystal features include world time, stopwatch, timer, alarm, calendar, and led super illuminator light japanese quartz movement black bio-based resin strap; buckle clasp shock resistant; water resistant to 200 meters we are an authorized casio dealer