Stainless steel case with a black polyurethane strap with stainless steel accents. Uni-directional rotating stainless steel bezel with a black ion-plated ring. Black (skeleton window) dial with luminous silver-tone hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Citizen caliber Eco-Drive 9040 automatic movement with a 42-hour power reserve. Scratch resistant sapphire crystal. Pull / push crown. Transparent case back. Round case shape. Case size: 44 mm. Case thickness: 11 mm. Band width: 22 mm. Deployment clasp with a push button release. Water resistant at 100 meters / 330 feet. Functions: hour, minute, second. Casual watch style. Watch label: Japan Movt. Citizen Signature Octavia Automatic Black Dial Men's Watch NB4018-04E.