18 kt white gold case with a brown alligator leather strap. Fixed 18 kt white gold bezel. Slate dial with silver-tone hands and Arabic numeral hour markers. Minute markers around the outer rim. Dial Type: Analog. Small seconds sub-dial at the 6 o'clock position. Manual wind movement with 54 hour power reserve. Calibre 98900 engine. Scratch resistant sapphire crystal. Pull / push crown. Skeleton case back. Case diameter: 43 mm. Case thickness: 11 mm. Round case shape. Tang clasp. Water resistant at 30 meters / 100 feet. Functions: hour, minute, second, tourbillon. Luxury watch style. Watch label: Swiss Made. IWC Portuguese Tourbillon Hand Wound White Gold Mens Watch IW546301.