2023 marks the opening of the latest chapter in the last great story in dive watches, as venerable Swiss dive instrument maker Aquastar returns with a new Model 60 — a fully modernized tribute to the brand’s inaugural 1957 dive watch of the same name, which introduced a crucial safety measure for dive watches of that era: a friction ring in the rotating bezel to prevent accidental rotations. Devised and originally patented by Aquastar, this simple, but critical feature would later become a standard feature echoed by legions of dive watches in the years that followed.

The 2023 Model 60 continues Aquastar’s earliest traditions of capability, adventure and exploration, which began in earnest on January 23rd in 1960 when US Navy Lieutenant Don Walsh, wearing an original Model 60, and co-pilot Jacques Piccard, made a pioneering journey to the bottom of the Challenger Deep, aboard the bathyscaphe Trieste to a record-breaking depth of 10,916 meters (35,814 feet). Walsh’s Model 60 is recognized as Aquastar’s inaugural tool watch, and would set an early precedent for the then-nascent maker, as Aquastar’s innovative and ultra-reliable watches would quickly earn a reputation as the foremost timekeeping choice for mariners, professional divers, and ocean conservationists alike.