The Jacob & Co. Astronomia Tourbillon Ceramic Black (Reference: AT100.95.KK.SD.B) is a limited edition timepiece that showcases the brand's commitment to innovative watchmaking. Encased in a 50mm black ceramic case, this watch features a skeleton dial that reveals its intricate manual-winding movement. The black alligator leather strap with a folding clasp ensures both comfort and style. With a power reserve of approximately 60 hours, this timepiece is a testament to Jacob & Co.'s dedication to precision and luxury.