Stainless steel case with a black leather strap. Fixed stainless steel bezel. Anthracite dial with rose gold-tone hands and index hour markers. An Arabic numeral appears at the 12 o'clock position. Minute markers around the outer rim. Dial Type: Analog. Date display at the 6 o'clock position. Seconds sub-dial above the 6 o'clock position. Automatic movement. Scratch resistant sapphire crystal. Skeleton case back. Case diameter: 40 mm. Case thickness: 10.02 mm. Round case shape. Water resistant at 50 meters / 165 feet. Functions: date, hour, minute, second. Luxury watch style. Watch label: Swiss Made. Item Variations: 900 20 31 L01, 900-20-31 L01, 900/20/31 L01, 9002031 L01. Fortis Terrestis Orchestra PM Classical Modern Date Automatic Anthracite Dial Black Leather Mens Watch 900.20.31 L01.