Please Note: Due to USPS international mailing standards, at this time, we cannot ship items with lithium batteries to military addresses (APO, FPO or DPO). ; A distinguishably sophisticated chronograph timepiece backed by timeless master craftsmanship that Citizen is know throughout the world for. Using the most advanced technology in watch making, the Eco-Drive never needs a battery. Citizen's Eco-Drive technology harnesses the power of light (natural or artificial) and converts it into energy which is stored in a permanently rechargeable lithium-ion cell. Recharges continuously and has a power reserve lasts from 6 months to 5 years (depends on model). Quick start up after exposure to light. Atomic timekeeping with radio-controlled accuracy. World time. 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. Power reserve indicator. All stainless steel black ion plating. Foldover clasp with hidden double push button. Mineral glass crystal. Water resistant to 200m / 666 feet. Dimensions: Face Width 34mm Face Height 34mm Face Depth 15mm Band Width 20mm Band Circumference 8 inches ; Citizen Watch offers a five-year limited manufacturer's warranty on all their products. For more information, please visit their website and see the Service Information section.