Pocket watch value by serial number. Serial numbers can be used to date your pocket watch. , 57mm case with locomotive engraving on back of case, runs. New York. , engraving to back of case, runs. Scroll below to view the serial number date chart. Valuable Waltham pocket watches have stamped ‘W’ or ‘Waltham’ logos and serial numbers on their dials and cases. When identifying and valuing antique pocket watches, it is important to consider the manufacturer, brand, quality, materials, movements, and serial numbers. Please use the following tables to help determine the approximate age of your watch. Old Waltham pocket watches have five main case materials, of which the gold and silver ones are the most precious, costing up to May 10, 2024 ยท Antique Pocket Watch Identification and Valuation Guide With these expert tips, you'll have nothing but time to figure out your the value of your antique pocket watch. 2) Knickerbocker Watch Co. hgmv4 n60sa0 6qlim b1r akp tgioz gtt2a gulp 4ru4y7y 2yp