With a dial made from osmium – which is not only the world’s heaviest metal but also the rarest and densest, most stable element – this version of the Free Wheel has a white gold case which frames the diamond-like osmium crystals. On its side, the deep blue aventurine dial is reminiscent of the starry night sky glittering with reflections of the stars. A form of translucent quartz, the name “aventurine” derives from the Italian a ventura, which can mean “by chance” or simply “let the adventure begin”.
Made using a rarefied, 17th-century technique once practiced by nuns in convents, straw marquetry has been revived with new glory and used by Ulysse Nardin to adorn the face of this Executive Free Wheel model. Lightweight straw means there is no issue of pressure on the dial and barrel cover. The fourth dial is made of Carbonium® made of aeronautical-grade carbon fibers and approximately twice as light as aluminum. The carbon and pre-pregnated resin composite are made with ecologically-sourced components, making a markedly smaller impact on the environment than any conventional carbon composite. Aesthetically stunning, Carbonium® Gold is a product of the intimate fusion of carbon filaments and gold particles within a thermosetting matrix.