Citizen AT8187-75E ATTESA Eco-Drive Radio Wave Model Number : AT8187-75E Driving system : Eco Drive Radio Wave (H800) Release date : 10 November 2022 Case Material : Super Titanium / Duratect DLC Bezel: Top sapphire glass ring Band Material : Super Titanium / Duratect DLC Glass : Sapphire Glass (clarity coating) Reinforced waterproof for everyday life (10 bar) Day & date display 24 hour display perpetual calendar Receiving electric waves in Japan, China, America, and Europe Limited to 1900 worldwide 3 YEAR WARRANTY/ 1 YEAR INTERNAIONAL Receiving station automatic selection function Scheduled reception function Forced reception function 1/20 second chronograph (60 minutes total) Shock detection function Needle automatic correction function Battery charge display function Charging warning function Overcharge prevention function World time function (26 time difference) Daylight saving time function