Jacob & Co. Astronomia Maestro Tourbillon Repeater 50 mm watch. Model reference: AM500.40.AC.SD.D. 18K rose (pink) gold case with sapphire crystal apertures on sides. Skeleton dial. Manual-winding movement. Blue alligator leather strap with 18K rose (pink) gold 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.