During the production years of the Caliber 12 (and related movements), the companies had the following roles, in the assembly of the movements.
•Buren supplied the base movements to Heuer (and Breitling);
•Valjoux supplied the components for the chronograph module (Dubois-Depraz had designed this module, but did not manufacture these parts and components); and
•Heuer and Breitling assembled the chronograph modules (from the parts supplied by Valjoux), and then combined the chronograph module with the base movement to produce the Caliber 12 movements.
ολοι μαζι,αν και το εχουμε γραψει ξανα στο παρελθον..
διαδρομες,φανερες και υπογειες