The Astronomia is the embodiment of 21st century ultra-high-end watchmaking and a globally recognized symbol of Jacob & Co watchmaking expertise. A world-first both in the boldness of its unprecedented concept and its entirely mechanical construction, the Astronomia has gone beyond impressive horological achievements to becoming an outstanding multidisciplinary engineering accomplishment.?

The Astronomia Solar Constellations & Planets takes the celestial idea of the Astronomia timepiece and puts it into warp speed. It displays the planets of our Solar System as half spheres of semi-precious stones on a starry blue titanium base that turns counterclockwise every ten minutes. Above, the iconic Astronomia vertical movement rotates clockwise every 10 minutes. In addition to its three arms carrying Jacob & Co. exclusive complications, it also features three colored gems, each perfect spheres exhibiting the exclusive 288-facet Jacob Cut®. On top of the movement is a fiery gem featuring the Jacob Cut® that serves as the representation of the Sun.

The Astronomia Solar Planets makes for a beautifully artistic, highly refined and fully mechanical recreation of our solar system.

In the Astronomia Solar Constellations & Planets, the Sun is represented by a fiery yellow gemstone featuring the Jacob Cut® with 288-facets.

The tourbillon was originally invented to provide improved timekeeping performance for a pocket watch. The Astronomia Tourbillon brings this 200-plus-year-old complication to breathtaking levels of modern refinement and complexity.

The one-minute flying tourbillon of the Astronomia Solar Constellations & Planets features a delicately decorated cage that encapsulates the balance wheel, hairspring, escape wheel and a number of other crucially important components. This openworked, rose gold cage not only features the J&Co logo in its architecture, but is only secured from underneath, allowing for an unobstructed and full view at the ultimate refinement of its detailing and operation. It is a constellation of superbly finished components that, when assembled and fine-tuned expertly, allowing the Astronomia caliber to keep accurate time throughout its 48-hour power reserve.

The blue titanium base alight with constellations containing rotates counter-clockwise 360 degrees every 10 minutes, carrying seven planets made of cabochon-cut precious stones half-spheres: white granite for Mercury, rhodonite for Venus, red jasper for Mars, pietersite for Jupiter, tiger eye for Saturn (18K Rose Gold applique for the rings), blue calcite for Uranus and Lapis Lazuli for Neptune.

The Astronomia Solar Constellations & Planets case measures 45.50 millimeters in diameter and 21 millimeters thick between the highest point of its specially curved front sapphire crystal and the lowest point of its case. Its 18K white gold case holds a single-piece sapphire crystal window around its periphery, allowing for unhindered viewing of the spectacular caliber and precious stones inside.

The time display subdial of the Astronomia Solar Constellation & Planets is driven through a differential system that allows it to always remain leveled and hence perfectly legible, even as the movement's four-armed platform performs its continuous, 10-minute orbit.

The PVD blue titanium dial represents the twelve Zodiac signs, as engraved and rose gold-plated hour indices, while the Jacob & Co. hands are plated with 18K rose gold.