So-Called "Jumbo, Ref. 3700/1" Patek Philippe, Genève, "Nautilus", No. 1303592, case No. 532909, Ref. 3700/1. Made circa 1977. Very fine and rare, oversized, "carré galbé", self-winding, water-resistant, stainless steel gentleman's wristwatch with date and an integrated, stainless steel Patek Philippe bracelet with deployant clasp. Accompanied by an original fitted box and certificate. Two-body, polished and brushed, sapphire crystal. Anthracite with horizontal stripes, applied luminous steel baton indexes, outer minute divisions, aperture for the date. Luminous steel "baton" hands. Cal. 28-255 C, stamped with the Seal of Geneva quality mark, rhodium-plated, "fausses côtes" decoration, 36 jewels, straight-line lever escapement, free-sprung Glucydur Gyromax balance adjusted to heat, cold, isochronism and 5 positions, shock absorber, self-compensating flat balance spring, 21K gold rotor segment. Dial, case and movement signed. Dim. 42 x 44 mm. Thickness 8 mm. Property of an East Coast Collector Notes Ref. 3700/1 Production of this reference started in 1976. A similar watch is published in “Collecting Patek Philippe Wristwatches” by Osvaldo Patrizzi, Guido Mondani Editore Genova, 2004, vol. II, pp. 250.