Swiss made luxury watch grand complication. Calibre 26-330S QR mechanical hand-wind movement with perpetual calendar, moon phase display and leap year function. Analog dial type in black featuring retrograde date, day of the week at 9 o'clock, month at 3 o'clock, moon phases at 6 o'clock all displayed via apertures framed by a gray electroplated outline. Silver-tone hands and index hour markers on black composite face. Includes second function as well as hours, minutes display. Fixed bezel in silver-tone stainless steel case measuring 39.5 mm diameter and 11.49 mm thickness. Transparent sapphire crystal back allowing view of the movement. Round shape secured by fold over clasp with safety release mechanism. Water resistant to 30 meters/100 feet depth.