Patek Philippe Ref 431 a fine and large 18ct gold wristwatch retailed by Tiffany & Co. manufactured in 1940, dial: silvered, Breguet numerals, subsidiary seconds, calibre: cal. 9'90 manual winding, 18 jewels, movement number: 833758, case: large curved hinged rectangular, case number: 418428, Closure: Patek Philippe black leather strap and 18ct gold buckle, dimensions: 45 mm x 25 mm (including lugs), signed: case and movement signed Patek Philippe & Co., dial signed by retailer, accessories: two Patek Philippe Extracts from the Archives dated August 23, 2010 and February 15th 2021, Patek Philippe authorised service centre invoice dated 22 July 2021, cardboard box