Girard Perregaux Ref. 8004 F and Gyromatic 39 jewels square
By: philbee1966 : May 24th, 2023-16:19
Hi everyone, Here is one of the Damier from GP that I own, as per GP, the caliber inside it is a GP 26-38 dating from 1964-1965, I cant find any informaiton on it, even on Ranfft Watches web site. Does any of you know more about this caliber? The only inf...