- Posts: 39171
- Joined: December 16th 2009, 11:00pm
- Location: Oregon, Thanks for visiting! Now go back home!
One of the pillars of this new Zenith vision was the El Primero 21 (a watch we looked at in some detail here), which took the iconic high-frequency chronograph that is the El Primero and rocketed it to the next level.
You see, the regular EP runs 5Hz, allowing 1/10th of a second accuracy. The chronograph on the El Primero 21 runs at a boggling 50Hz, meaning that the chrono hand makes a single revolution in a second, and offers 1/100th of a second accuracy. Of course this rate only applies to the chronograph operation; timekeeping runs at a more sedate and less power-hungry 5Hz, which is plenty accurate for day-to-day timekeeping.
https://timeandtidewatches.com/hands-de ... 21-carbon/
“Your heart was warm and happy
With the lilt of Irish laughter
Every day and in every way
Now forever and ever after."