Stainless steel case with a black (alligator) leather strap. Fixed stainless steel bezel. Black dial with luminous rose gold-tone hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Date display at the 12 o'clock position. Longines calibre L633 automatic movement with a 38-hour power reserve. Scratch resistant sapphire crystal. Pull / push crown. Solid case back. Round case shape. Case size: 40 mm. Case thickness: 10.5 mm. Band width: 20 mm. Tang clasp. Water resistant at 30 meters / 100 feet. Functions: date, hour, minute, second. Casual watch style. Watch label: Swiss Made. Item Variations: L1 645 4 52 4, L1-645-4-52-4, L1/645/4/52/4, L16454524. Longines Conquest Heritage Automatic Black Dial Mens Watch L1.645.4.52.4.