1965 Rolex Deep Sea

These days, it’s tough to get a hold of any Rolex dive watch. But a Rolex diver that’s going under the hammer in an upcoming auction takes the brand’s infamous exclusivity to a whole new level.

Rolex has long been synonymous with water resistance in watches, from the Oyster of the 1920s to today’s Deep Sea. But the most legendary of all is the Deep Sea Special, created by the brand to see just how deep underwater a watch could survive. Rolex went through a few prototypes of the Deep Sea Special in the 1950s and ‘60s, eventually landing on the model we have here with a depth rating of 10,908 meters (35,789 feet) that was tested in the Mariana Trench in 1960.

Only a handful of the watches were made, and none were ever sold to the public — they were gifted to scientists and museums. This Rolex Deep Sea Special from 1965 is made from steel and gold and is numbered #35. It will be auctioned off by Phillips in association with Bacs & Russo at The Geneva Watch Auction: XIV on November 5 and 7, where it’s expected to fetch between $1.3 million and $2.6 million.