It’s no quiet fact that the Zenith Calibre 410 is well-respected. This automatic column-wheel chronograph movement with moon phase and calendar functions was retired in 2000, after more than three decades of use. Recognizing the technical significance of this movement, Zenith has decided to bring it back once more for the new El Primero 410, limited to 500 pieces.

Last year we showed you a stunning Zenith El Primero prototype manufactured in 1970 that sold for over $40,000 at Christie’s on May 14th, 2012. This prototype, with tonneau-shaped case, was one of an estimated 25 pieces ever made. Its technical and historical significance did not go unnoticed by Zenith, as it the company itself was the winning bidder on this lot.