PATEK PHILIPPE GOLDEN ELLIPSE REF. 3861J Patek Philippe, Golden Ellipse, Ref. 3861J, movement no. 1193294, case no. 555212, made in 1981. A fine and unusual, automatic, extra-thin, cushion-shaped, 18K yellow gold wristwatch with hexagonal shaped textured gold and white enamel dial, gold Dauphine hands, radial Roman numerals, outer minute division, leather strap and an 18K yellow gold Patek Philippe buckle. Fitted with a Cal. 240, rhodium-plated, self-winding with 22K gold micro-rotor, stamped with the Seal of Geneva, 27 jewels, straight line lever escapement, Gyromax balance, shock-absorbers, snap on gold case back, sapphire crystal, stepped bezel. Dial, case and movement signed. Diam. 33.60 mm. Thickness 5.25 mm. Accompanied by Patek Philippe Extract from the Archives confirming production of the present watch in 1981 and its subsequent sale on 3rd July 1985. Reference 3861 was in production from 1978 until the early 1980s, and was featuring a humidity protected case, a caliber 240 self-winding, and was available in 18K yellow or white gold. Ref. 3861 is described and illustrated in Patek Philippe in America, Reference book, Vol. 1, by John Reardon, page 161.