Jacob & Co Astronomia Tourbillon 50 mm watch. Model reference: AT100.40.AC.SD.A. 18K rose (pink) gold case. Skeleton dial. Manual-winding movement. Black alligator leather strap with 18K rose (pink) 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.