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 and moonphase sub-dial at the 6 o'clock position. Automatic movement with a 43-hour power reserve. Scratch resistant sapphire crystal. Pull / push crown. Skeleton case back. Case diameter: 39 mm. Case thickness: 10.6 mm. Round case shape. Fold over clasp with a safety release. Water resistant at 50 meters / 165 feet. Functions: moonphase, month, date, day, hour, minute, second. Luxury watch style. Watch label: Swiss Made. Item Variations: Q1558420, 1558420, 155.84.20, Q155.84.20.Jaeger LeCoultre Master Calendar Automatic Mens Watch Q1558420