Sub 300

The DOXA Sub 300 puts a broad cushion case around a surprisingly compact dial, with a rotating bezel that pairs elapsed minutes with a depth scale for no-decompression limits. That combination—not orange alone—is the family’s signature, linking the original 1967 diver to later revivals and modern interpretations.

Dial names provide a useful first distinction: Professional means orange, Sharkhunter black, and Searambler silver. The oversized minute hand gives dive timing priority over the hour, while the beads-of-rice bracelet adds an unexpectedly supple counterpoint to the case. Across generations, crystal profiles, case proportions, and automatic movements have changed; a vintage example and a current model can share the same visual vocabulary without wearing quite alike.

The modern SUB 300 uses a prominently domed sapphire crystal and a chronometer-certified automatic movement. The related SUB 300T takes a tougher-looking route, with a flatter crystal, greater water resistance, and a helium-release valve. Earlier watches need their own distinctions: the original SUB 300 and subsequent SUB 300T mark different stages of the design, rather than interchangeable names for one unchanged watch.