The Art Of Patek Philippe
Geneva, Apr 09, 1989
Patek Philippe & Cie, Genève, No. 869308, case No. 2817876, Ref. 2499/100, made in 1984, sold on the 4.7.1985. Extremely fine and rare astronomic platinum gentleman's wristwatch with round button chronograph, 30 minute register, perpetual calendar and moon phases, produced in 349 examples between 1950 and 1985, among them only 2 examples with a platinum case.
C. massive, polished, concave bezel, sapphire crystal. D. mat silver with applied platinum indexes + auxiliary 30 minutes register and seconds dials, graduation for the days of the 'month, outer minutes and seconds indications, apertures for the days of the week, the months and the lunations. "Dauphine" platinum hands. M. 13"' Q, Geneva quality hall mark, rhodiumed, " fausses-côtes" decoration, 23 jewels, lever escapement, monometallic balance adjusted to 8 positions, self-compensating Breguet balance-spring, micrometer regulator. Dial, case and movement signed. In mint condition. Diam. 37 mm.