In-Depth: 1.85mm... How Bulgari Created the World’s Thinnest Tourbillon Watch?
Bulgari has established itself as a leader in ultra-thin watchmaking, continually breaking records with its Octo Finissimo collection. In 2025, the brand introduced the world’s thinnest tourbillon watch, the Octo Finissimo Ultra Tourbillon, measuring just 1.85mm in thickness. This remarkable achievement follows a series of record-breaking releases, with Bulgari focusing on innovative designs and engineering solutions that challenge the limits of traditional watchmaking. The watch retains the sleek aesthetic of its predecessors while incorporating advanced technical features, including an integrated movement architecture that optimizes space. Achieving such minimal thickness poses significant challenges, particularly with the construction of a tourbillon, which traditionally requires more space. Bulgari's engineers tackled these difficulties by redesigning the movement layout and using the caseback as the main plate, thereby eliminating unnecessary layers. The result is a stunning blend of functionality and artistry, showcasing Bulgari's commitment to excellence in horology. Insights from key figures in the development team reveal the groundbreaking techniques that made this ultra-thin tourbillon a reality, marking another milestone in the evolution of luxury timepieces.
