These movements were modular with a Dubois-Depraz chronograph sitting atop a Buren micro-rotor caliber. That made the need for any case that housed it no matter from which brand
link to be larger and thicker than the previous generation of manually-wound chronographs. Therefore we can
link say goodbye to the elegance of the original first-series Carrera. And that's okay because this larger "c-shaped" case really fits the era that it lived in remarkably
link well.