The new Doxa Sub 300 Carbon Seafoam brings together advanced materials and a daring color palette in a limited-edition collaboration with Watches of Switzerland. With its feather-light forged carbon case and vibrant dial, it pushes the Sub 300 into new territory while staying true to the brand’s deep-sea roots.
Doxa and its heritage of diving instruments
Founded in 1889, Doxa has built a reputation for crafting professional dive watches that balance rugged functionality with distinct style. The Sub 300, first launched in 1967, became a benchmark in tool watches thanks to its no-nonsense design, patented rotating bezel with decompression scale, and strong presence on the wrists of explorers like Jacques Cousteau. Today, the Sub 300 family continues to embody that spirit of exploration while adopting modern materials and colors to appeal to a new generation of enthusiasts. This Seafoam edition demonstrates how the brand can evolve without losing the DNA that made it respected among divers and collectors.
Carbon construction and technical execution
At the heart of this new release is a forged carbon case measuring 42.5 mm in diameter and only 11.9 mm thick. The material not only reduces the weight dramatically compared to steel but also creates a swirling, matte texture that is unique to each piece. Paired with a screw-down crown and a sapphire crystal, the watch maintains a water resistance of 300 meters, staying faithful to its professional tool watch pedigree.
Inside ticks the ETA 2824-2, a tried-and-tested automatic movement running at 28,800 vph with a 38-hour power reserve. The watch also features Doxa’s signature unidirectional rotating bezel with dual depth and decompression scales—an unmistakable trait that grounds it in the brand’s diving heritage. This technical execution ensures the Sub 300 Carbon Seafoam is not just a design statement but a capable companion underwater.
A Seafoam dial for adventurous wrists
The real talking point is the Seafoam green dial, exclusive to this collaboration. Its pastel tone contrasts vividly against the dark carbon case, making the watch feel youthful, bold, and ready for summer adventures. Large applied indices filled with Super-LumiNova ensure excellent legibility, while the date at three o’clock and orange minute hand give it the distinctive Doxa look.
The watch is delivered on a matching Seafoam FKM rubber strap with a black PVD-coated folding clasp, seamlessly extending the color theme from dial to wrist. It is a design that speaks to collectors who enjoy a statement piece yet demand the durability and heritage of a serious diver’s watch. Whether worn at the beach, during a dive trip, or simply as a standout everyday watch, this model blends functionality with a striking visual presence.
Availability, pricing, and perspective
Limited to just 500 pieces, the Doxa Sub 300 Carbon Seafoam is available exclusively through Watches of Switzerland in the U.S. and UK. Priced at $3,990 USD, it positions itself above the steel Sub 300 models but justifies the premium with its lightweight forged carbon construction and limited nature.
From my perspective, this watch encapsulates what makes Doxa compelling today: a respect for history combined with a willingness to experiment with bold materials and colors. The Seafoam shade will not be for everyone, but for those who want a dive watch with character, it is a refreshing alternative to the usual blacks and blues…even though the Paulin Mara did it (very) creatively !
