I've never had an El Primero movement INSIDE a Zenith watch before.
Sure, I've owned other watches with the El Primero movement inside because Zenith used to sell their movements to other brands to survive.
Also Zenith watches without the El Primero movement but now is a chance to have a pukka El Primero-driven Zenith.
PuristSPro 1-7-8
Don't be an Ass; Get with the Best
I'm in...........
Regards,
MTF