Patek Philippe Calatrava 2570-1 R AM

Brand Patek Philippe, Geneva Model ‘Amagnetic’ (Amagnétique) Retailed by Unión Suiza, Barcelona and Madrid (Spain) Year circa 1958 Reference 2570-1 R AM (Amagnetic) Movement No. 728 621 Calibre 12-400 AM, manual-winding, 18 jewels Case No. 697 213 (by Edouard Wenger, Geneva) Material/s pink gold (18-carat) Bracelet Pink gold (18 carat) period bracelet Signature dial, case and movement Accessories Certificate of origin with its envelope, original fitted box, Extract from the Archives Patek Philippe Ref. 2570-1 R AM (Amagnetic), anti-magnetic (to 450 œrsteds), water-resistant, large bezel and facetted lugs, silver dial, Arabic numerals and thin indexes; removable pink gold bracelet; nicknamed ‘Amagnetic’ by collectors; pink gold (18-carat) -- An anti-magnetic ‘tool’ wristwatch, ‘Full Set’ -- Pink gold (18-carat), manual-winding, round-shaped, anti-magnetic gentleman’s wristwatch, with subsidiary seconds at 6 o’clock, water-resistant, with movement protected against magnetic fields. -- Case: two-piece, polished, cylindrical profile case-band with concave low part extended by a wide flat inclined bezel, slightly down turned bevelled lugs, water-resistant with screwed case-back; polished ‘Calatrava’ crown. Dial: silver colour, with pink gold applied suspended Arabic numerals (3-9-12), square pyramidal-shaped index at 6 o’clock and radiating thin indexes, external minute track divided five by five with “perlé” beaded dots; ‘Amagnetic’ mention at 12 o’clock; pink gold ‘Feuille’ leaf-shaped hands. Movement: calibre 12-400 AM, manual-winding, 18 jewels, rhodium-plated with ‘fausses côtes’ decoration, going barrel, straight-line lever escapement (with gold lever), Glucydur screw-balance, self-compensating Breguet hairspring, polished steel index-regulator with spring and micrometric screw, adjusted to heat, cold, isochronism and 5 positions, Geneva Quality Hallmark (“Poinçon de Genève” / Geneva Seal); movement protected inside a permalloy soft nickel-iron calotte (protective container) against magnetic fields. -- The Extract from the Archives, dated December 17, 2019, mentions that this watch was made in 1958 and sold on June 30, 1959.