DOXA SUB 300 Searambler

In 1967, DOXA launched the revolutionary SUB concept, considered to be the first truly purpose-designed diver's watch for a broad audience. The radical innovations it introduced at the time quickly made it the benchmark for professionals, too. Rated to a depth of 300 meters (30 ATM), it was the first of its kind to feature a unidirectional bezel with dual markings for dive times and depths for calculating and monitoring no-decompression dives.

At the time, the US Navy no-decompression dive table was the be-all and end-all, enabling divers to first determine and then monitor the time they could remain at a predetermined depth and still ensure a safe return to the surface – without having to make a decompression stop on the way back up. DOXA engineers took the US Navy’s calculations and incorporated them into two separate scales on the bezel, one orange for the outer "depth" ring and the other black for the inner "time" ring – a DOXA patent.

The first to feature a bright orange dial, in daring contrast to the conventional black or white diver’s watches of the day, the instantly recognizable SUB 300 soon became a legend in its own time.