PATEK PHILIPPE.A FINEAND RARE 18K GOLD SINGLE BUTTON CHRONOGRAPH HUNTER CASE KEYLESS LEVER WATCH WITH BREGUET NUMERALS SIGNED PATEK PHILIPPE & CO., GENEVE, MOVEMENT NO. 174'420, CASE NO. 408'956, MANUFACTURED IN 1914 Movement: Cal. 19, manual, signed Dial: Silvered, signed Case: Bassine style, 52 mm. diam., signed With: Extract from theArchives confirming production of the watch movement in 1914And the subsequent sale of the timepiece on 8 June 1973, pouch