When Gérald Genta designed the Patek Philippe Nautilus in 1976, he couldn't have predicted that his avant-garde steel sports watch would one day become both a cultural icon and the most counterfeited timepiece in the brand's history. The Nautilus Ref. 5711, introduced in 2006, has evolved from a luxury watch into a market phenomenon, and with that status came an unwelcome shadow: an entire industry dedicated to replicating it.