“Yellow Ref. 2481” Patek Philippe, Genève, No. 707566, case No. 2604535, Ref. 2481. Made circa 1959. Fine and very rare, center seconds, 18K yellow gold gentleman's wristwatch with a 14K yellow gold link bracelet with hobnail pattern. Two-body, solid, polished and brushed, fluted curved lugs, concave bezel, engraved case back. Matte silver with applied yellow gold faceted baton indexes and dot minute markers. 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. Notes Ref. 2481 Production of this references started in 1950. A similar watch are published in “Collecting Patek Philippe Wristwatches” by Osvaldo Patrizzi, Guido Mondani Editore, 2004, vol. II, p. 154 to 157.