The Astronomia Gravitational Triple Axis Tourbillon Black Gold by Jacob & Co., a wristwatchsized depiction of the cosmos, is an immediately impressive sight. Pushing technical limits with the threedimensional Caliber JCAM10, this timepiece performs a fascinating choreography of multiaxis revolutions. First of all, the central axis and the four arms of its modules make a complete rotation in 20 minutes. The tourbillon combines a fiveminute turn around the vertical axis with its horizontal 60second spin. On the opposite site, the hours and minutes subdial revolves on its axis and thus stays pointed in the right direction, thereby guaranteeing a clear display of the time for the wearer of this watch. Pivoting at the ends of their respective arms, the magnesium lacquered Earth appears facing the Moon represented by a spherical diamond featuring 288 facets (patented Jacob Cut) reflecting every ray of light in multiple directions and lighting up the starlit sky during the 60second rotation around an independent axis. The end result is a stunning visual show that is never the same twice but instead evolves constantly, while appearing to float freely through space above an aventurine background.
Case: black DLC-coated 18K white gold with transparent sapphirecrystal sides, domed sapphire crystal, aventurine and black DLC-treated 18K white gold background, water-resistant to 30m
Size: 50mm
Movement: mechanical hand-wound (exclusive Caliber JCAM10, 60h power reserve), triple axis tourbillon with differential system
Functions: hours, minutes, triple-axis gravitational tourbillon, rotating earth and moon
Dial: hand-engraved titanium, lacquered hour-markers, diamond finishes, hand-finished steely blue hands, one-carat spherical diamond, magnesium lacquered globe
Strap: alligator leather, adjustable folding clasp in black DLC- treated 18K gold white gold