The Classique Grande Complication is a double-tourbillon wristwatch in 950 platinum that features a hand-wound movement with a ring-shape dial forming a flange in 18-karat silvered gold, and a chapter ring with Roman numerals. The hour hand is an extension of the bridge supporting the two tourbillon carriages. Engine-turned by hand, a center plate featuring two apertures for the tourbillons rotates in step with the passing hours. Inside Information: The back of the movement bears a hand-engraved drawing representing the solar system, inspired by the 60-second rotation of the tourbillons on themselves and their rotation in tandem around a center axis over a 12-hour period. Three patents are pending on the design; the watch is also available in a pavé version.