VINTAGE ZENITH POCKET WATCH CHARLES ROSAT BALANCE REGULATOR IN SILVER CASE Charles Rosat developed "Patent No. 21639 of 1900/11/09 and No. 24677 of 1902/02/22. In "La montre suisse" he is listed in the reports of the Observatory Neuchâtel as trimmer of watches of P. Ditisheim, P. Buhré, Favre-Jacot/Zenith, P. D. Nardin and Albert Pellaton-Favre. Pocket Watch: Solid silver case, signed and Hallmarked: 0.800 Ref: 4376. Serial number: 3224882 Porcelain dial - no cracks. Nice ornated hands Case Diameter: 54mm Zenith movement serial number: 2602832, 17 jewels - in full working order, serviced Crown with Zenith star Return accepted if not as described and item is returned in the condition in which it was sent. 499 EUR + ship. Payment by paypal or bank transfer - without additional cost for me.