Our selection of Zenith El Primero Watches
El Primero, Spanish for "first," is inextricably linked to the Swiss watchmaker Zenith. It established the company with the star as its logo in the pages of watchmaking history and thus became the manufacturer's masterpiece. The Zenith El Primero was the world's first automatic chronograph caliber when it was introduced in 1969. This timepiece can stop time to one tenth of a second due to its unusually high balance frequency of 36,000 half revolutions per hour, corresponding to 5 Hz. This is still an uncommon feature in mechanical chronographs.