Doxa SUB 300 Beta Sharkhunter 830.20.101.20

The SUB 300β Sharkhunter – true as ever to the DOXA SUB’s signature technical attributes. β for ‘beta’, for beyond the conventional. Because it’s not just about re-combining colors, materials and textures. Always in touch with the contemporary lifestyle, and aware that diving watches need to adapt to city life, DOXA created a watch with a perfect blend of urban sophistication and contemporary elegance.

Starting from the premise that a sports watch should feel right under any circumstance, the SUB 300β Sharkhunter retains all of its original DNA while cultivating a sleeker, more stylish appeal. Here, DOXA ever so slightly reworked the design to achieve a slimmer watch, resulting in a profile of just 11.95 mm (13.65 mm for the SUB 300T) as well as a lower bezel height (by 0.5 mm) compared to the SUB 300T.

The result is extravagance with a sense of proportion and a choice of materials that connect the watch to our time. A way of juxtaposing elements that seems to have been waiting beneath the surface all along: the black ceramic case, the matte grained dial with black-on-black markings… and the dazzling contrast with the mission-critical information provided by the hands and indexes, and the functional components of the bezel and crown in 18K 3N gold. The DOXA SUB 300β Sharkhunter comes on a black FKM rubber strap for a particularly comfortable fit.

Reference: 830.20.101.20

Dated: 2026

Bracelet: Black FKM rubber strap, folding clasp in black PVD-coated, with ratcheting wetsuit extension

Case: 42.5mm x 11.95mm Thickness x 44.5mm lug to lug - Black matt ceramic, chamber in titanium

Lug Width: 20mm

Water Resistance: 30 ATM / 300 meters / 984 feet

Bezel: Unidirectional rotating bezel in 18K 3N gold with a ceramic bezel inlay (in feet)

Movement: ;Swiss Mechanical Movement - Automatic

Functions: HMS, Date, Helium Release Valve

Box and Papers: Box and Papers

Crystal: Sapphire

Bracelet size: 7.85”

New Unworn - Uncut Strap

DOXA, founded in 1889 by Georges Ducommun in Le Locle, Switzerland, has a rich history of watchmaking innovation. Initially gaining recognition for its pocket watches and dashboard clocks, DOXA's defining moment came in 1967 with the introduction of the SUB 300 dive watch. This groundbreaking timepiece, featuring an iconic orange dial, unique no-decompression bezel, and purpose-built design for recreational divers, quickly became a benchmark in the industry. Notably, in collaboration with Rolex and the introduction of the Sea-Dweller, DOXA co-developed the now-common helium escape valve concept, adding another feather in its cap as a true diver’s tool in its day. DOXA's reputation was further enhanced by its association with Jacques-Yves Cousteau and its frequent appearance in Clive Cussler's adventure novels.

Despite facing challenges during the quartz crisis, DOXA experienced a resurgence after its acquisition by the Jenny family in 1997. Today, the brand continues to honor its diving heritage while embracing modern watchmaking techniques. DOXA's journey from a small Swiss workshop to a globally recognized dive watch manufacturer demonstrates its enduring commitment to innovation, quality, and functionality. The brand's iconic designs, particularly the SUB series, remain popular among diving enthusiasts and watch collectors alike, cementing DOXA's place in horological history.