in 1953. This history-making expedition paved the way to the trip down to the bottom of the Mariana Trench (1960, 10,916 meters). I related the two feats in my books about Rolex: Rolex dalla A alla Z (in Italian) and Rolex 1905-1960 (in English and Italian). Both feature images of a display model made by Rolex in the early 1960s to celebrate the event, currently owned by the Musée International d'Horlogerie in La Chaux-de-Fonds.
The "N°1" entrusted to Christie's is the first of the three identified prototypes of Deep Sea Special, and the only one with "low" glass - the other two being equipped with the thicker and higher glass that Rolex developed later on for further extreme testing.
Will the "N°1" break the record set by the Paul Newman's Daytona chronograph that sold for $ 17.8 million in 2017?