Rare Stainless Steel automatic Patek Nautilus Nautilus Ref. 5712. Moon phases, date and power reserve functions. It features the seconds subdial at 4 o’clock. Sapphire crystal case back. Fold-over clasp. Powered with the caliber 240 PS IRM C LU. Rare Geneva Seal Hallmark. The watch is in overall excellent condition and coms with all box and papers dated 2006.