Citizen Eco-Drive Radio-Controlled Chronograph World Timer; Blue Angels edition with caseback insignia. Atomic time in 26 world cities; radio-controlled accuracy in 5 zones. 1/20 second chrono up to 60 minutes, perpetual calendar, 12/24 hour time, power reserve, non-reflective sapphire crystal. Stainless steel, blue ion plating, leather strap. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number H800. Specifications - Model: Citizen AT8020-03L - Gender: Men's - Collection: Blue Angels World Chronograph A-T / Promaster Sky - Movement: Eco-Drive (Caliber E650) – light-powered, no battery required - Display: Analog, chronograph with 3 subdials - Case Material: Silver-tone stainless steel - Case Diameter: 43 mm - Case Thickness: 13 mm - Dial Color: Blue with yellow accents - Crystal: Anti-reflective sapphire glass - Strap: Blue leather with yellow contrast stitching - Clasp Type: Deployment clasp with push button - Water Resistance: 200 meters / 20 BAR – suitable for professional marine activity and serious surface water sports - Functions: - Atomic timekeeping (radio-controlled) - Perpetual calendar - World time (26 cities) - 1/20 second chronograph (60-minute) - 12/24-hour time - Day and date display - Power reserve indicator - Pilot’s rotating slide rule bezel - Alarm Item #AT8020-03L For more information, assistance, sizing and customization, please contact us at (757) 548-1258 or visit our site to know more. https://tidewaterdiamond.com #BestRingEver #TidewaterDiamond