The long-awaited successor to the A386 from 1969, one of the earliest El Primero equipped chronographs in steel, has arrived in the form of the CHRONOMASTER Original. This historically-inspired chronograph retains the same design elements and proportions of its predecessor while delivering a new era of performance. Powered by the latest generation of the El Primero, the CHRONOMASTER Original is capable of 1/10th of a second time measurements.