PATEK PHILIPPE/GÜBELIN very fine & rare, oversized 18k yellow gold 'Jumbo' Nautilus gents wristwatch reference 3700 designed by Gerald Genta with original certificate, self winding, Switzerland retailed by Gübelin in May 1980, two-piece construction case, at the sides 4-times screwed down, sapphire crystal, blue-gray, horizontal striped dial with raised Baton-indexes & seller signature GÜBELIN, Baton-hands, date at 3, fine automatic movement, seal of Geneva, central rotor with 21k gold-segment, 36 jewels, glucydur balance, Kif-shock-absorber, calibre 28-255C, fausses cotes decoration, measures approx. 42 x 44 mm,length approx. 19 cm, defect PPC box enclosed, condition 1-2, this base-model celebrated in the year 2016 its 40th anniversary, between 1976 and 1990 there were only about 1500 pieces produced in yellow gold, from the collection of the first owner