Harry Winston has surprised the world again with the seventh edition of the company’s illustrious watch line, which it revealed at Baselworld 2016.

The official name of the newest addition to the New York-based brand’s timepiece collection is the Harry Winston Histoire de Tourbillon 7, a nod to the two bi-axial tourbillions that work in tandem inside the incredible new timepiece.

The right side of the dial appears as a futuristic clock face, while the left side showcases the bi-axial tourbillions, which are highlighted by a choice of either red aluminum or anthracite. The case is 18kt white gold with a domed AR-coated sapphire crystal, a sapphire display back, and a black alligator leather strap with an 18kt white gold buckle.

The Histoire de Tourbillon 7 has a 55-hour power reserve before it needs to be manually re-wound. The ultra rare watch is limited to only 20 pieces, and its price has not yet been announced.