Casio GA2100-4A G-Shock 2100 Series men's analog digital watch features a 47mm wide and 16mm thick red resin case with a fixed bezel and smooth function pushers. Casio GA2100-4A is powered by Japanese quartz movement. This stylish watch also features a analog digital red dial with white accents red luminous hands and index and Arabic numeral hour markers along with the World time: 31 time zones (48 cities + coordinated universal time), daylight saving on/off; Timer: Countdown timer, Measuring unit: 1 second, Countdown range: 24 hours, Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments); Light: Double LED light, LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow), LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow); Calendar: Full auto-calendar (to year 2099); Accuracy: