Leaving no chance for doubt, the Patek Philippe Nautilus watch has established itself as a globally-venerated, highly-sought-after timepiece. The first step is knowing what to buy; then, knowing where to buy it. The storied history of the Patek Philippe Nautilus (known in watch circles as the 5711), are well-known by horological die-hards and now, the luxury and celebrity communities have began favoring certain models of the 5711 at…