Zenith watch company has won over 1500 watch industry awards and created over 50 calibers, but it wasn't until 1969 that Zenith introduced the legendary "El Primero" chronograph movement, setting the standard for mechanical excellence. It was the first chronograph caliber with integrated automatic winding and is also the fastest chronograph in existence, beating at 36000 alternations per hour (compared to the more typical 28000) making it also the most precise in the world.