Created by Tiffany & Co. in New York, the watch is made of platinum. Measurements: diameter 1-3/4 inches (4.5 centimeters). Weight 62.9 grams. Movement mechanical, 15 jewels, four adjustments, made by Movado watch company, serial number 34976. There are two reference numbers 18309 and 5443 and a stamp for pure platinum.
Art Deco Tiffany & Co. Platinum Pocket Watch Pendant Antique Estate Jewelry