Posted by One of Zenith’s most famous manual movements is the Calibre 135. A fantastic, beautiful movement, so great that another (non-Swiss) company made an exact copy of it!
Here is the dual signed version: Zenith Favre-Leuba.
Quite a rare bird this dual signed chronometer version, but my understanding is that the non-chronometer version is even more rare…
The Blomman Watch Report 