Black resin case with a black resin strap. Fixed bezel. Black dial with red and silver-tone hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog-digital. Digital day of the week and date. Chronograph - three sub-dials displaying: 60 second, 60 minute and 1/10th of a second. Quartz movement. Scratch resistant mineral crystal. Solid case back. Case size: 51.2 mm. Case thickness: 16.9 mm. Round case shape. Tang clasp. Water resistant at 200 meters / 660 feet. Functions: day, date, 1/1000th second stopwatch, speed indicator. hourly time signal. auto-calendar. daily alarm. countdown timer. backlight auto led light with afterglow. 12/24-hour formats. world time 29 times zones (48 cities + utc)., hour, minute, second. Additional Info: 29 times zones, 4 daily alarms, an hourly alarm. Sport watch style. Item Variations: GA100 1A4, GA100.1A4, GA1001A4. Casio G-Shock Black Resin Strap Men's Watch GA100-1A4.