DOXA Sub 300T Divingstar Automatic – 840.10.361.10

The DOXA SUB 300T Divingstar is a modern tribute to one of the most important milestones in dive watch history. First introduced in 1968 as the SUB 300T Conquistador—the world’s first diver’s watch available to the public with a helium release valve—this reimagined model carries forward that pioneering spirit with contemporary engineering and design.

Crafted from premium 316L stainless steel, the 42.5mm case is built for extreme durability and water resistance up to 1,200 meters, making it a true professional tool for deep-sea exploration. A scratch-resistant sapphire crystal with anti-reflective coating ensures clarity in all conditions, while the patented unidirectional bezel features DOXA’s no-decompression dive time calculator, an essential companion for serious divers. The bold yellow dial, accented with Super-LumiNova® on all critical markers, guarantees exceptional legibility even in the darkest depths.

Inside, a Swiss-made automatic movement beats at 28,800 vibrations per hour, offering a 38-hour power reserve and decorated by DOXA for added refinement. The helium release valve underscores the SUB 300T’s professional-grade capabilities, while the screw-down crown and caseback secure the integrity of the watch against extreme pressures.

Completing the watch is DOXA’s iconic “Beads of Rice” stainless steel bracelet. With brushed and polished links, it drapes comfortably around the wrist while the folding clasp, engraved with the DOXA fish, integrates a ratcheting wetsuit extension for effortless adjustment. Rugged yet refined, the SUB 300T Divingstar embodies DOXA’s heritage of innovation, reliability, and unmistakable style beneath the waves.