TECHNOLOGY Button operation available for use with gloves Tough Solar solar-charging system convents sunlight, fluorescent, and other light sources into power Electro-luminescent backlight display shows information in crystal clear quality in any lighting condition Mineral glass and 100-meter water and shock resistant resin case construction protects against impact and vibration letting you take your watch through the toughest of environments Battery Life: 6 months on rechargeable battery with normal use without exposure to light after charge Low temperature resistant (-10 degC/14 degF) World time modes covering 31 time zones, daylight savings on/off setting Countdown timer Battery Level indicator Full auto-calendar (to year 2099) 12/24 hour-format Regular timekeeping: Hour, minute, second, pm, month, date, day Size of case: 57.3x50.9x15.3mm Total weight: 65.4g USES Embodies some of the very best in functional beauty and ease of operation that modern watch technology has to offer Keep track of time and an extensive variety of environmental conditions and factoids from your wrist SPECIAL FEATURES Digital Compass and graphic direction pointer measures and displays direction as one of 16 points Altimeter measuring and memory allow to you keep track of the height of your activity Atmospheric pressure and barometer readings Built-in Celsius/Fahrenheit thermometer 5 independent daily alarms Power Saving mode allows you to conserve battery life when not in use