Developed in 2005 in collaboration with Harry Winston’s Rare Timepieces and the watchmaker Christophe Claret, the highly inventive Glissière tourbillon was the winner of the coveted Grand Prix d’Horlogerie Technical Watch Category in 2007. The movement, Caliber CC-CHW97A, features a skeletonized tourbillon with a 51-hour power reserve wound by two platinum weights allowed to slide freely on metal rods. As the weights move independently back and forth, they wind the mainspring via a platinum fan-form gearing on the reverse. Visually from the front, the wearer sees two round mechanisms, the ♛one on the left being the complete winding barrel & gear train and the one on the right being the flying tourbillon, both of which are also visible through four apertures cut into the rectangular white gold case, in addition to the front and back display windows. Found at the lower edge of the dial is an innovative interpretation of the traditional power reserve indicator, this time displayed in a linear display with a sliding marker. The design of the movement and mo🀅ving blocks draws comparisons to the wheels, sliding pistons, and rails of a steam locomotive.

Originally under the guidance of Max Büsser, Harry Winston Rare Timepieces established the ‘Opus’ series of highly technical and exceptional wristwatches created annually in partnership with one of Switzerland’s most talented independent horologists. The Opus One, launched in 2001, was created in collaboration with watchmaker François Jean Paul Journe and subsequent examples ♔from highly creative and successful 🌞master-watchmakers have included, among others, The ‘Opus 5’ by Felix Baumgartner and ‘Opus 6’ by Robert Greubel and Stephen Forsey. Harry Winston, although most famous for their exquisite diamonds, has directly aided in the development of some of Switzerland’s most creative and successful independent watchmakers via Rare Timepieces and the Opus series.