Zenith Chronomaster El Primero 'Shadow' Revival 97.T384.4061/21.C822 collection_seamaster Each watch is thoroughly analysed

Each watch is thoroughly analysed and tested for water resistance as well as airtightness at under and overpressure

the excellence test

And unlike the prototype from 1970

The black dial includes a magnified day/date calendar and LumiBrite hands and markers

Powered by a self-winding Breitling 24 caliber

Zenith Chronomaster El Primero 'Shadow' Revival 97.T384.4061/21.C822 collection_seamaster Each watch is thoroughly analysedA timepiece shrouded in mystery. Its existence has eluded collectors and Zenith collaborators alike for decades. As the legend goes, in 1970, not long after Zenith debuted the groundbreaking El Primero calibre, the manufacture had produced a prototype of a manual winding chronograph, housed in a blackened steel case a rarity for the time. Only a handful of this spectral prototype was made, but the model was never officially produced or commercialized.