Jacob & Co. Astronomia Tourbillon Black Ceramic Black & Red Movement 50 mm watch. Model reference: AT100.95.KR.SR.B. Black ceramic case. Skeleton dial. Manual-winding movement. Black alligator leather strap with folding clasp. Swiss made. The watch comes in the original packaging, with a set of documents and 2 years warranty. At Modern Wrist we offer new authentic watches at the best prices.