Doxa

Professional

Reference Number :

830.10.351.20

Series : SUB 300 Beta

Retail: $2,250

(As of: 05/2025)

This watch is not for sale, this page is just for reference purposes only. If you would like to purchase this watch, please contact Doxa. If you are interested in selling this watch to us, you can contact us here.

Quick TakeThis isn't just your grandad's trusty DOXA, though the lineage is undeniable. The SUB 300 Beta Professional takes that iconic barrel case and slims it down, adding a touch of urban polish without sacrificing an ounce of its deep-diving DNA. That glossy black ceramic bezel isn't just for looks; it's tough as nails and rotates with satisfying precision for timing anything from decompression stops to pizza delivery. Inside beats a reliable Swiss automatic heart, keeping things ticking whether you're exploring shipwrecks or navigating rush hour. The sunray dial with its subtle wave pattern catches the light beautifully, a constant reminder of the 300 meters of water this beauty can handle. Paired with the incredibly comfortable "Beads of Rice" bracelet or the robust rubber strap, both featuring that essential ratcheting clasp, it transitions effortlessly from wetsuit to business suit. It's a proper tool watch that cleans up exceptionally well – a modern classic blending rugged capability with undeniable style.

DescriptionEngineering specifications detail a timepiece constructed from stainless steel, designated as reference 830.10.351.20 within the SUB 300 Beta Professional series. The case structure presents dimensions of 42.50 mm in diameter, extending to 44.50 mm lug-to-lug, with a reduced profile height of 11.95 mm. Water ingress protection is rated to 30 ATM, equivalent to 300 meters or 984 feet, facilitated by a screw-down crown mechanism and a solid stainless steel screw-down case back. Incorporated into the case design is a helium release valve, a feature pertinent to saturation diving environments. The watch face is protected by a scratch-resistant sapphire crystal, ensuring optical clarity and durability. Surrounding the crystal is a unidirectional rotating bezel fabricated from black ceramic, calibrated in meters for dive time tracking.

Propulsion is provided by a Swiss mechanical movement featuring automatic self-winding capabilities. This calibre operates at a frequency of 28,800 vibrations per hour (4.0 Hz) and offers a power reserve approximating 38 hours upon being fully wound. The movement includes decorative finishing applied by DOXA. Time indication comprises central hours, minutes, and seconds hands, supplemented by a date display function. The dial exhibits a sunray finish overlaid with a stamped wave pattern structure. Attachment to the wrist is achieved via either a stainless steel "Beads of Rice" bracelet or an FKM rubber strap, both options featuring a lug width of 20.00 mm. Securement is managed by a folding clasp integrating a ratcheting wetsuit extension mechanism for convenient adjustment over dive suits.

GenderMen

SignaturesDOXA

Country of OriginSwitzerland

Case Size42.5 mm

MovementAutomatic

FunctionsHours, Minutes, Seconds, Date

Power Reserve38 Hours

Case MaterialsStainless Steel

Bezel MaterialsCeramic

Lug MaterialsStainless Steel

Case BackSolid

CrownScrew Down