Citizen AT8304-57W Promaster Sky Eco-Drive Radio Controlled horloge

The Citizen Promaster Sky AT8304-57W Pilot watch pairs style with modern technology in a robust 44 mm stainless-steel case and matching bracelet, finished with a deep forest-green dial. Powered by Eco-Drive, it runs on energy from light sources, eliminating the need for battery replacement. With 20 ATM water resistance, it is suitable for swimming and snorkeling, while sapphire glass keeps the dial clean and scratch-resistant. Featuring a chronograph and calendar with multiple sub-dials, it offers practical day-to-day readability with a tachymeter-like ring and bold, high-contrast details.