Based in Biel/Bienne, Switzerland, DOXA is a long-established diver's watch brand with over 130 years of history. Known as a brand used by professional divers in real-world conditions since the dawn of diving culture, the "DOXA SUB," born in 1967, became synonymous with diver's watches due to its striking orange dial and innovative functional design. Today, in Biel/Bienne, the company continues to develop watches while preserving the craftsmanship and tradition passed down over many years.

The unidirectional rotating bezel is an indispensable feature for divers to safely manage their remaining dive time underwater. If the bezel is accidentally moved during a dive, it can lead to an underestimation of dive time, increasing the risk of decompression sickness. With the unidirectional function, the bezel can only be rotated in one direction, ensuring that even if accidentally operated, the dive time is not displayed as shorter, thus maintaining safety. DOXA's adoption of this design, supporting "decompression-free ascent," was a groundbreaking initiative at the time of its release.

They are characterized by designs that embody the brand's heritage, featuring high-precision Swiss mechanical movements, highly legible orange dials, distinctive cushion-shaped cases, and "rice bead" style bracelets. The lineup for the Japanese market is centered around the "SUB 200," an entry-level model with 200m water resistance and a modern reinterpretation of its 1960s design, and the "SUB 300" with 300m water resistance, a faithful reproduction of the 1967 original. Prices are expected to range from the 200,000s to the 700,000s yen.