18kt white gold case with a brown leather strap. Fixed 18kt white gold bezel. Black dial with white gold-tone hands and white gold-tone Arabic numeral hour markers, minute markers on the outer rim hour markers. Minute markers around the outer rim. Dial Type: Analog. Chronograph - sub-dials displaying: 60 seconds and 30 minutes. IWC Calibre 79350 automatic movement with a 44-hour power reserve. Scratch resistant sapphire crystal. Round case shape. Case size: 40.9 mm. Tang clasp. Water resistant at 30 meters / 100 feet. Functions: chronograph, hour, minute, second. Additional Info: chronograph. Luxury watch style. Watch label: Swiss Made. Item Variations: 3714-31, 3714/31, 371431, IWC-3714-31 IW371431, 3714-31, 3714/31, 371431, IWC-37. IWC Portuguese Chrono-Automatic 18kt White Gold Brown Men's Watch IW371431.