Swiss. Serial number 819114, circa 1930. 40mm case. Nickel bridge style movement with pressed fit jewels. Marked "Henry Birks & Sons Ltd Montreal Canada" and Eight adjustments. 18K gold case. Brushed metal dial with raised gold Arabic numerals and gold hands. Marked "Birks" and "Patek Philippe & Co. Geneva Switzerland". Open faced 18K gold case. Very very thin. Navy blue enamel highlights in geometric pattern around edge of bezel, back and bow. Initials "RHG" engraved on the back. Excellent. No marks on the dial or case. The watch was found to be running at the time of cataloguing. It has not been tested for timekeeping accuracy and may require adjustment. Offered without reserve. CODE:POC