skand
·I always thought that since Zenith had won so many Chronometer competitions that they could use that term on those movements as Chronometer grade but not necessarily each watch having been certified. I’m sure the more knowledgeable here will agree or correct me. Either way, Zenith made some incredible pieces and were, IMO, far ahead of most other companies
Apart from the cal. 135, which won five consecutive chronometer competitions, did any other Zenith movement also compete in such a competition?