Patek Philippe

http://www.calibremagazine.

1946 : Manufacture of the 10'''-200 round caliber, of which 20'197 pieces were made and in use up to 1965. The movement is housed in round, square and rectangular cases, in yellow pink, white gold, platinum or steel, with different Design of the cases and lugs. Among them are references: 431, 482, 1419 (also with 10''' -105 calibre), 1458 (also with 10'''-105 calibre), 1519, 2407, 2408, 2440, 2488, 2496, 2501, 2527, 2528, 2546, 2547, 2548, 2549/1, 2549/2, 3496. 1948: Creation of the Electronic Division 1949: On May 15, a patent is granted for the "Gyromax" balance wheel. 1949: Manufacture of the 27 SC round caliber, of which 12'879 pieces were made and in use up to 1970. The movement is housed in wristwatches, with centerseconds, some pieces with cloisonné enamel cases. The cases are in yellow, pink, white gold, platinum or steel. Among them are references: 2457 , 2460, 2467, 2467, 2481, 2482, 2508, 2514.