PATEK PHILIPPE. A RARE AND EARLY 18K GOLD RECTANGULAR CURVED HINGED WRISTWATCH WITH GILT DIAL AND “EXPLOSION” NUMERALS SIGNED PATEK PHILIPPE & CO, GENEVE, RETAILED BY EBERHARD MILAN, REF. 10, MOVEMENT NO. 192’464, CASE NO. 287’540, MANUFACTURED IN 1919 Movement: cal. 9’”, manual, 15 jewels, signed Dial: signed by maker and retailer Case: hinged curved back, 23.8 mm. wide, 41 mm. overall length, signed With: later 18K gold Patek Philippe buckle, Extract from the Archives confirming production of the present watch with silvered dial and dauphine numerals in 1919 and its subsequent sale on 9 September 1921.