1950s Zenith Stainless Steel "Port Royal" Cal.135

The Zenith Caliber 135, manufactured from the mid-1950s to the early 1960s, is one of the rarest and most accurate chronometers ever made, with only about 11,000 pieces produced. It left its name as a genuine chronometer with high accuracy as well as rarity. The "Port Royal" is a rare piece that was produced in only about 5,000 pieces, including YG, WG, and SS, as a further top-grade line. It is a rare piece produced in only about 5,000 pieces, including YG, WG, and SS. The crown and tailpiece are currently not genuine, but original parts are available. Other than the wind shield and leather strap, everything else is original as it was at the time.