Richard Mille UP-01 Ferrari (thinnest)

About this reference

The Richard Mille RM UP-01 Ferrari was introduced in 2022 as a limited edition of 150 pieces. It currently holds the record for the world’s thinnest mechanical watch, measuring 1.75mm in total thickness. Collectors value this reference for its technical construction, which utilizes a Grade 5 titanium monobloc baseplate to ensure rigidity despite its profile. The manual-winding caliber RMUP-01 features a patented ultra-flat escapement and eliminates the traditional winding stem in favor of two integrated crowns on the dial face. The movement provides a 45-hour power reserve and 5,000g of shock resistance. On the secondary market, this reference typically commands prices in the $1.7 million to $2.2 million range, significantly above its initial retail price of approximately $1.88 million. A notable production detail is the collaboration with Ferrari, evidenced by the laser-engraved Prancing Horse logo on the case front.