Brushed steel case with a black leather/ crocodile pattern strap. Graduated, unidirectional rotating bezel. Black dial with alternating stick and Arabic numeral hour markers. Dial Type: Analog. Luminescent hands and markers. Automatic date at 4:30 - magnified. Chronograph - sub-dials displaying: small second counter at 9 o'clock, 30-minute counter at 3 o'clock, 12-hour counter at 6 o'clock. Automatic movement. El primero 4000 sc engine with about 50 hours power reserve. Scratch resistant sapphire crystal. Screw-in crown, engraved with zenith star crown. Sapphire crystal exhibition case back. Case diameter: 46.5mm. Round case shape. Deployment clasp. Water resistant at 300 meters / 1000 feet. Functions: date, chronograph, hour, minute, second. Sport watch style. Watch label: Swiss Made. Item Variations: 03.0526.4000-21.C648, 03 0526 4000 21 C648, 030526400021C648. Zenith Defy Classic Chronograph Aero Mens Watch 03.0526.4000/21.C648.