The first PR 516 (with a space in the name) dates back to 1965. The first version was a time-only watch in a style that we would call GADA (Go Anywhere, Do Anything) today. PR stood for "Particularly Resistant," a delightful bit of '60s marketing. Originally part of the Seastar line, the 516 was marketed as a water-resistant watch.
The first PR 516 (with a space in the name) dates back to 1965. The first version was a time-only watch in a style that we would call GADA (Go Anywhere, Do Anything) today. PR stood for "Particularly Resistant," a delightful bit of '60s marketing. Originally part of the Seastar line, the 516 was marketed as a water-resistant watch.