Atomic Timekeeping with Radio-Controlled Accuracy World Time in 43 Cities 2 Alarms 1/100 Second Chronograph Measures up to 24 Hours 99 Minute Countdown Timer Perpetual Calendar Digital Display Light Greenwich Mean Time Display Rotating Slide Rule Bezel Non-Reflective Crystal All Stainless Steel Black Ion Plating Power Reserve Indicator 200-Meter Water-Resistant Foldover Clasp with Hidden Double Push Button Movement: Solar Powered Display: Analog & Digital Date: Yes Chronograph: Yes Water-Resistant: 200m/660 Feet Alarm: Yes Power: Solar Powered Fastener: Folding