Watchmaking “rough diamonds” at auction at Sotheby’s. Called “Rough Diamonds”, this sale only offers avant-garde or disruptive vintage timepieces.

“The vintage watch market is seeing more and more collectors looking for differentiating pieces,” said Josh Pullan, head of the Luxury division at the auction house. In total, this sale, designed to be an event, will only include 24 watches, one for each hour of the day.