Jacob & Co. Astronomia Clarity White Gold 50 mm watch. Model reference: AT120.30.AD.SB.A. 18K white gold case. Skeleton dial. Manual-winding movement. Blue alligator leather strap with 18K white 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.