PATEK PHILIPPE.A RARE 18K GOLD RECTANGULAR ELECTRONIC WRISTWATCH WITH SWEEP CENTRE SECONDSAND DATE SIGNED PATEK PHILIPPE, GENEVE, REF. 3603, MOVEMENT NO. 8'151, CASE NO. 2'732'416, MANUFACTURED IN 1974 Movement: Cal. B 21, quartz, 13 jewels, signed Dial: Signed Case: Snap on back, 33 mm. wide, 37 mm. overall length, signed With: 18k gold Patek Philippe buckle, Extract from theArchives confirming production of the present watch in 1974And its subsequent sale on 13 June 1974