Welcome to Dialed In, Esquire’s column bringing you horological happenings and the most essential news from the watch world. If you know about dive watches, the Longines Legend Diver is an ...

In 1968, Longines took the Ultra-Chron concept a step further with the introduction of the Ultra-Chron Diver (ref. 7970). This model marked a significant milestone as the first high-frequency ...