The Citizen NB6021-17E Promaster Marine Automatic Men Watch delivers professional-grade performance with a lightweight Super Titanium™ case treated with Duratect for superior scratch resistance. Featuring a 41mm case, urethane strap, and luminous hands and index, this diver’s watch is powered by the automatic Calibre 9051 with date display. With 200-meter water resistance, mineral glass, and rugged durability, it is built to handle marine adventures while maintaining a sleek everyday look.