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While the asymmetrical design immediately grabs your attention, the story for Berneron starts with the manual-wind caliber 233, both in concept and in link execution. Berneron originally dreamt up a movement with a large barrel and balance wheel, with an link irregular shape accommodating these technical components. The caliber 233 is thin, too – just link 2.33mm, as indicated by its name.

According to Foulkes and link Rolex the link project that would come to be known as the Submariner tried on various names while in development and even hit a post-launch hiccup in link the US. Hans Wilsdorf is quoted in the book as saying "I like the name Deep Sea Special better than Frogman" and even shares an idea that in hindsight would have really changed watch-world history "I am sure that Nautilus is already registered."