@calibre24.com: Patek Philippe Nautilus 5711/1A, a highly sought after, a very rare and collectible Blue dial, commemorating the 50th anniversary next year, now available at Calibre24. Head over to our website at Calibre24.com.au and make this incredible timepiece yours! #patek #patekphilippe #5711 #pateknautilus #patekphilippenautilus #calibre24