Gent Patek Philippe Grand Complications Perpetual Calendar in 18K yellow gold, Ref# 5040J. On original reptile strap with 18K yellow gold tang buckle, 43mm (including lugs) x 37mm case dimensions, sapphire display caseback. Self-winding movement, perpetual calendar, phases of the moon, day, date, month, leap year and am/pm indicator. Silver dial with applied Arabic numerals. Box and undated papers. Excellent condition.