Secrets of the Patek Philippe Nautilus

The Patek Philippe Nautilus was born nearly 50 years ago, in 1976, and helped to re-energise the world of high-end Swiss watches, which was in the midst of the ‘quartz crisis’ at the time. As the industry reeled from the arrival of the battery-powered watch and its far-reaching consequences, Patek Philippe boldly released a new timepiece designed by Gérald Genta.

Although Genta’s creation is now considered an integral part of Patek Philippe’s identity, at the time it was a huge risk for the company to produce a watch so different from anything it had done before. An oversized and expensive steel mechanical automatic in a world in which ultra-thin gold-bracelet quartz watches were all the rage with the disco generation, the Nautilus made a statement that was heard around the globe.

That statement continues to resonate today, as the Nautilus evolves in new and unexpected ways. But for all the twists and turns over the course of half a century, the Nautilus has stayed true to its DNA. Here, we share six remarkable facts about this iconic watch.

That statement continues to resonate today, as the Nautilus evolves in new and unexpected ways. But for all the twists and turns over the course of its 40-year history, the Nautilus has stayed true to its DNA. Here Christie’s shares six ‘secrets’ about this iconic watch.

In an interview in 2009, Gérald Genta discussed the moment when he was inspired to design the watch now known as the Nautilus. It was the mid-1970s and he was sitting in a restaurant during the Basel watch fair. ‘Some people from Patek were sitting in one corner of the dining hall, while I was sitting alone in the other corner,’ he recalled. ‘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 five minutes… It very quickly met with success. I made the prototype in my studio and its success was accelerated.’

The design was based on the shape of the porthole of a transatlantic liner, with a wide bezel and ‘ears’ on each side evoking the large hinges of those watertight windows.

The design was based on the shape of the porthole of a transatlantic liner, with wide bezel and ‘ears’ at each side evoking the large hinges of those watertight windows.

When the Nautilus was first released in 1976, the original retail price for this time-only watch was $3,100. It was a bold price and a bold design for the time — by comparison, a Patek Philippe mechanical wristwatch in 18k gold retailed for just under $4,000, and a steel Rolex Daytona chronograph was priced just under $1,000.

The first Nautilus reference 3700 watch contained the calibre 28-255C, which was made with a movement sourced externally from Jaeger-LeCoultre — the calibre 920 — and finished in-house by Patek Philippe. In fact, this is the same movement that was used in early examples of one of Gérald Genta’s other masterpieces of design: the Audemars Piguet Royal Oak. This movement was considered one of the best ultra-thin automatic calibres of the era.

From 1971 until 1995, all watches made in Switzerland with gold applied markers or gold dial plates were required to have the ‘APRIOR’ logo (often called ‘sigma’, after the Greek letter) marked on the dial. With Nautilus watches from this period, the APRIOR mark can be seen on each side of the ‘SWISS’ under the six o’clock baton. This was due to the fact that the hour-marker batons of the watches were made from white gold rather than steel. APRIOR stands for ‘Association pour la Promotion Industrielle de l’Or’. From today’s perspective, it’s rather ironic that this association is ‘promoted’ on the dial of such an iconic steel watch.

On the subject of steel, early Nautilus watches were made from nickel-chromium-molybdenum steel, an alloy that was considered the highest standard at the time. It was made to withstand extreme temperatures and pressure, and known for its resistance to corrosion. Used extensively in the construction of tanks during the Second World War, it was not only protective but relatively light compared to ‘regular’ steel.

When the 5711/1A was released in 2006 to celebrate the 30th anniversary of the Nautilus, it was an instant success at a retail price of $17,000. The new version featured a three-part rather than a two-part case, which was 1mm wider than its predecessor, and a sapphire display back featuring the in-house calibre 324C.

The 5711/1A is now considered one of the most coveted steel watches in modern production, and its popularity — like that of all watches in the current Nautilus line-up — shows that it is still young at heart after five decades, continuing to command the attention of watch collectors worldwide.

Rare Watches, Featuring Stories in Time: A Collection of Exceptional Watches takes place at Christie’s in Geneva on 12 May 2025, followed by Watches Online: The Geneva Edit Featuring Stories in Time: A Collection of Exceptional Watches (live for browsing 13-21 May). Both sales will be on view 9-11 May at the Four Seasons Hotel des Bergues, Geneva. Explore Luxury at Christie’s