Silver-tone stainless steel case with a black rubber strap. Rotating inner ring silver-tone stainless steel bezel. Black dial with silver-tone hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Date display at the 3 o'clock position. IWC Calibre 79320 Automatic movement, based upon ETA 7750, containing 31 Jewels, bitting at 28800 vph, and has a power reserve of approximately 44 hours. Scratch resistant sapphire crystal. Screw down crown. Round case shape, case size: 42 mm. Buckle clasp. Water resistant at 20 meters / 65 feet. Functions: chronograph, date, day, hour, minute, small second. Additional Info: 44-hour power resreve; screw-in crown; date displays at 3 o'clock position. Aquatimer Chronograph Series. Luxury watch style. Watch label: Swiss Made. Item Variations: 3719-33, 3719/33, 371933, IWC-3719-33 IW371933, 3719-33, 3719/33, 371933, IWC-37. Pre-owned IWC Aquatimer Chrono Chronograph Black Dial Mens Watch IW371933.