Important Watches, Wristwatches and C...
Milano, Hotel Principe Di Savoia, Nov 30, 1992
Patek-Philippe, Genève, "Calatrava", specially made for the Ecole d'Horlogerie de Genève, Ref. 2509, case No. 57114, circa 1950. Interesting and very rare, "eloxé"aluminium gentleman's wristwatch.
C. polished, waterproof, anti-magnetic protecting cap cover, screwed back. D. mat silver with applied gold indexes + auxiliary seconds dial. Gold " Dauphine" hands. M. 12-, 120, Geneva quality hall mark, rhodiumed, with "Fausses-cotes" decoration, 18 jewels, lever escapement, monometallic balance, antishock system, self-compensating Breguet balance-spring, antishock system, micrometer regulator. In very good condition. Diam.: 35 mm.