Panerai · Automatic

OP IV

One of the few Panerai calibres built on a Zenith El Primero rather than an ETA base, which is why it beats at 36,000 vibrations an hour where almost everything else in the catalogue runs at 21,600 or 28,800. The high rate lets the chronograph resolve a tenth of a second. Panerai used it only briefly, in early Luminor chronographs.