ZENITH NO FURTHER A MYSTERY

Zenith?�s entrant In this particular race took 5 years of enhancement that culminated in the El Primero 3019PHC, and it was most undoubtedly the globe?�s to start with superior-frequency, computerized chronograph with a constructed-in calendar and accuracy of 1/10th of a next. Very similar to the Seiko 6139, it was not modular and actually prov