“Yellow Gold Ref. 2481” Patek Philippe, Genève, No. 704521, case No. 688502, Ref. 2481. Made circa 1959. Fine and very rare, center seconds, 18K yellow gold wristwatch with an 18K yellow gold Patek Philippe buckle. Accompanied by an Extract from the Archives. Two-body, solid, polished and brushed, fluted curved lugs, concave bezel, dedicated case back. Matte silver with applied yellow gold faceted baton indexes, outer 1/5th seconds track. Yellow gold "dauphine" hands. Cal. 27-SC, rhodium-plated, "fausses côtes" decoration, 18 jewels, straight-line lever escapement, monometallic balance adjusted to heat, cold, isochronism and 5 positions, shock absorber, self-compensating Breguet balance spring, “swan-neck” micrometer regulator. Dial, case and movement signed. Diam. 37 mm. Thickness 10 mm.