A unique clock that was recently unveiled by independent Swiss watchmaker Les Ateliers Louis Moinet at the Musée d’Histoire des Sciences in Geneva has been officially inducted into the Guinness World Records. Known as Cosmopolis, this custom flying tourbillon watch features 12 pieces from 12 distinct meteorites on the dial, securing its spot in the most prestigious record book. The Guinness World Records has given it the title of “Most meteorite inserts in a watch.” Owner and creative director of Louis Moinet Jean-Marie Schaller stated, “Cosmopolis is a historic and scientific journey, a microcosm of the macrocosm, even more than a great watchmaking work.”

Schaller chose to create an unparalleled clock to highlight the magnificence of the space rocks after spending 20 years gathering the extraordinarily rare meteorites. There is a unique narrative behind each of the twelve meteorites, some of which are really older than the Earth. A moon meteorite, which is positioned in the dial’s center, is the rarest of them all. The black chondrite that has been thoughtfully positioned in the rear of the tourbillon cage is the second extremely fascinating space rock.

Ten disks are used to hold the remaining meteorite shards, which are used as markers all around the dial. Among them is the Allende meteorite, which originated from a meteorite shower in Mexico and is thought to be the oldest rock in the solar system at 4.567 billion years old. With a diameter of 40.7 mm, the 18-karat 5N rose gold case holds a hand-wound movement with 96 hours of power reserve. The custom watch costs CHF 225,000, or roughly $245,000.