Stainless steel case with a black (alligator) leather strap. Fixed stainless steel bezel. Silver dial with silver-tone hands and index hour markers. Arabic numerals mark the 3, 9 and 12 o'clock positions. Date scale around the outer rim. Dial Type: Analog. Day of the week and month display below the 12 o'clock position. Small seconds / moonphase subdials. Jaeger LeCoultre calibre JLC 866 automatic movement with a 43-hour power reserve. Scratch resistant sapphire crystal. Pull / push crown. Transparent case back. Round case shape. Case size: 39 mm. Case thickness: 10.6 mm. Band width: 20 mm. Band length: 8.5 inches. Fold over with safety release clasp. Water resistant at 50 meters / 165 feet. Functions: full calendar, moon phase, month, date, day, hour, minute, small second. Luxury watch style. Watch label: Swiss Made. Item Variations: Q1558420, 1558420, 155.84.20, Q155.84.20. Jaeger LeCoultre Master Calendar Automatic Men's Watch Q1558420.