"This new Promaster Atomic combines the best features of the Skyhawk AT and the Promaster Carbon series to create a flight chronograph with a rugged carbon fiber bezel, atomic accuracy and world time in 43 cities Stainless Steel Case and Bracelet Atomic Timekeeping with Radio Controlled Accuracy Citizen Eco-Drive Solar Power Technology never needs a battery 180 Day Power Reserve; 2.5 Year Power Reserve with Power-Save Function World Time in 43 Cities 2 Alarms 1/100 Second Chronograph Measures up to 24 Horus 99 Minute Countdown Timer Perpetual Calendar Digital Display Light Greenwich Mean Time Display One-Way Rotating Elapsed Time Carbon Fiber Bezel Non-Reflective Mineral Glass Crystal Power Reserve Indicator Water Resistant to 200 Meters (660 Feet) Bracelet features a Fold-Over Safety Clasp with Push-Button Release 44mm Case Width (Approximately 1 3/4"") 15mm Case Thickness (Approximately 5/8"")"