Written by 10:01 Watch Models

Doxa Sub 300 Professional

The Doxa Sub 300 Professional is a Swiss-made 300m diver featuring a bright orange dial, a dual-scale decompression bezel, and COSC chronometer certification.

The Doxa Sub 300 Professional is a modern reproduction of one of the most important dive watches in history. Debuted in 1967, the Sub 300 was designed to be a professional dive tool, recognizable by its orange dial and its patented bezel indicating decompression times.

Overview

Brand: Doxa
Model: Sub 300 Professional
Collection: SUB 300
Price: £2,390 GBP
Website: doxawatches.com

Specifications

Case Diameter: 42.5mm
Thickness: 13.4mm
Lug to Lug: 45.0mm
Lug Width: 20.0mm
Water Resistance: 300m
Case Material: 316L Stainless Steel
Crystal: Sapphire
Strap/Bracelet: Stainless Steel Beads-of-Rice Bracelet

Design & Wearability

Featuring a cushion-shaped case and a beads-of-rice bracelet, the Sub 300 sits low and secure on the wrist. The dial is small and offset to allow for a thick steel unidirectional bezel that includes depth markings. The hands are painted black, with an oversized minute hand for quick reading.

Movement & Performance

Powering the Sub 300 is a Swiss Sellita SW200-1 automatic movement with COSC chronometer certification. Operating at 28,800 vph, it has a 38-hour power reserve and is adjusted in five positions to meet the highest precision standards.

Official Website

Doxa Sub 300 Professional product page

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Tags: , , , , , , Last modified: 28 May 2026
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