What's new in Zenith's new El Primero? The editor-in-chief of Chronos Japan explains the El Primero 3600-equipped Chronomaster Sport [4K video]

This is a video explaining watches brought to you by webChronos. This time, we'll be introducing the Zenith Chronomaster Sport, released in 2020. Editor-in-Chief Masamasa Hirota's enthusiastic explanation is a must-listen and must-watch.

Caliber El Primero 3600 & Zenith Chronomaster Sports

The El Primero is an automatic chronograph that debuted in 1969. By combining a striking horizontal clutch with a carrying arm and a compact reverser, it is a historic masterpiece that realized the creation of an automatic chronograph, something that was said to be impossible at the time.

This time, we will introduce the Caliber El Primero 3600, which was born in the year marking the 50th anniversary of the birth of El Primero, and the Chronomaster Sport, the first mass-produced watch to feature this movement.

The El Primero 3600, nicknamed "El Primero 2," is the first major update to the El Primero, but what has changed from previous El Primeros? Masamasa Hirota, editor-in-chief of Chronos Japan, explains.

Please enjoy these extremely nerdy watch explanatory videos, which are only possible with webChronos.

Introduction model overview

This 2021 model is equipped with the El Primero 2, also known as the Caliber El Primero 3600. The chronograph draws its power from the escape wheel pinion, and an intermediate wheel accelerates it, allowing the chronograph second hand to complete one rotation in 10 seconds. The bezel, marked with a 1/10-second scale, is made of ceramic. In addition to a white dial model, a black dial model is also available, each with a bracelet and strap.