Tantalum case in 42mm. Using an automaton powered by the Octa movement, the minutes are driven by a rotating disk at 12; the mobile fingers indicating the hours by its position. Automatic FFC caliber 1300.3 in 18k rose gold. Unidirectional winding rotor, power reserve is at 120hrs. Unique piece To be offered at Only Watch 2021 auctions conducted by Christie’s on Nov 6, 2021 Estimated at 300-400k CHF Sold for 4,500,000CHF