Cal 32(A…), 39 jewels, High Beat, 36000 A/h, 40h power reserve, automatic with two roller freewheels, ball-bearing rotor, worm screw regulation gear, Chronometer number 19450
http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Girard-Perregaux_32A
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