Zenith - El Primero

The El Primero calibre 410 is the heart and soul of the Chronomaster. It sings to the tune of 36,000 beats per hour, or 10 tics per seconds.
First produced in 1969, the El Primero is still considered, the best mechanical chronograph movement. The Zenith is a classically constructed movement where the chrono-functions are integrated and steered by a column-wheel, which again follows the steps of classic watch-making. The calibre 410 is thick compared to the 1994 Zenith Elite (6.5 mm vs. 3.3 mm), but thinner than the Valjoux 7750 (7.9 mm), or the Lemania 5100 (8.25 mm), two movements that drive most modern chronographs. The calibre 410 sports 31 rubies, 354 parts, a triple calendar (month, day, date), a moonphase, 50 hours of power reserve, and of course the complete chronograph functions.

Category:

Science & Technology

Tags:

• Zenith
• El
• Primero
• Watchmaker
• Horology
• Swiss