Silver-tone stainless steel case with a black alligator leather strap. Fixed silver-tone stainless steel bezel. Black dial with silver-tone hands and index hour markers. Roman numerals mark the 6 and 12 o'clock positions. minute markers around the outer rim. Dial Type: Analog. Day of the week and date display at the 3 o'clock position. IWC Calibre 75320 automatic movement with a 44-hour power reserve. Scratch resistant sapphire crystal. Solid case back. Round case shape, case size: 43 mm, case thickness: 13.6 mm. Band width: 20 mm. Tang clasp. Water resistant at 30 meters / 100 feet. Functions: chronograph, date, day, hour, minute, second. Luxury watch style. Watch label: Swiss Made. IWC Portofino Chronograph Automatic Black Dial Mens Watch 3910-29.