Jacob & Co. Astronomia Sky Platinum 950 Tourbillon 47 mm watch. Model reference: AT110.30.AA.SD.A. Platinum case. Skeleton dial. Manual-winding movement. Blue alligator leather strap with platinum 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.