Go where the wind takes you with the Navihawk A-T. With atomic clock synchronization for superior accuracy, this perpetual calendar chronograph receiving radio signals both automatically and on-demand in North America, the United Kingdom, Europe, Japan and China. The Navihawk A-T ensures you are always on time, no matter where your journey takes you. FEATURES Atomic timekeeping Perpetual calendar: adjusts day & date for odd & even months including February of leap years up to 2100 Chronograph: up to 24 hours in 1/100-second increments 12/24-hour formats Power reserve indicator World time in 43 cities 99-minute countdown timer UTC display Shock sensing function DISPLAY Face cover material: mineral crystal Luminescence: hands & hour markers CASE Case material: stainless steel Caseback material: stainless steel Diameter: 48 mm BAND Band type: link bracelet Material: stainless steel Clasp: deployment Circumference: 200 mm Width: 22 mm DETAILS Movement: quartz Power: Eco-Drive Water resistance: 200 meters Model number: JY8030-83E