The Citizen BY1030-09A is a men's watch featuring a white dial and a blue leather strap. It is powered by the Eco-Drive H874 movement, which harnesses light energy and offers a power reserve of up to 180 days. The watch includes a moon phase display, perpetual calendar, world time for 24 zones, and radio-controlled timekeeping for Europe, the USA, China, and Japan. The stainless steel case measures 42 mm in diameter and 10.72 mm in thickness, with a sapphire crystal protecting the dial. Additional features include a 24-hour display, power reserve indicator, and water resistance up to 10 bar.
