PATEK PHILIPPE & CIE REF. 3418.Patek Philippe & Cie, Genève, No. 728017, case No. 2605883, Ref. 3418. Made in 1957, sold on July 9th, 1959..Fine, water-resistant, stainless steel wristwatch with an integrated.stainless steel mesh bracelet. Accompanied by
Three-body, polished, screwed-down case back..Matte silver with embossed steel baton indexes, outer minute.track, subsidiary seconds dial. Steel baton hands..Cal. 27- 400, stamped with the Seal of Geneva Quality Mark.rhodium-plated, fausses cotes decoration, 18 jewels, straight-line.lever escapement, monometallic balance adjusted to heat, cold.isochronism and 5 positions, shock absorber, self-compensating.Breguet balance spring, micrometer regulator..Dial, case and movement signed.