PATEK PHILIPPE, Genève, Nautilus, armbandsur, 27 mm,

The designer of the Nautilus, Gerald Genta have told that he designed the watch that was later named Nautilus during the Basel Trade Fair:
-"I was at the restaurant of a hotel and some people from Patek were sitting in one corner of the dining hall, while I was sitting alone in the other corner. I told the head-waiter: “Bring me a piece of paper and a pencil, I want to design something” and I designed the Nautilus while observing the people from Patek eating! It was a sketch that I completed in 5 minutes".
The inspiring idea was the shape of a porthole, like those that could be found on transatlantic liners. The patented case was formed by a solid backcase/middlecase monobloc and the distinctive octagonal bezel secured to it by four lateral screws to ensure water-resistance. Each of the eight sides of the bezel were subtly curved to trace a perfect arc of a circle, a subtle detail making a big difference from a design point of view.