FeaturesMonth Indicator, 12-Hour Dial, Water-Resistant, LED Display, Atomic/Radio Controlled, Mineral Crystal, Alarm, Shock-Resistant, Annual Calendar, Day/Night Indicator, Chronograph, Perpetual Calendar, Multi-Dial, World Time, Timer, Acrylic Crystal, Easy to Read/Large Numerals, Day/Date, Day Indicator, Date Indicator, Backlight, 24-Hour Dial