1200 m Water Resistance
Built for dive use, the Sub 300T Professional is rated for water resistance to 1200 m and includes a helium release valve.
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Updated 4 months ago
Orange-dial Swiss dive watch with cushion case, beads-of-rice bracelet, and 1200m water resistance.

Built for dive use, the Sub 300T Professional is rated for water resistance to 1200 m and includes a helium release valve.
A unidirectional rotating bezel includes dive time and decompression calculator markings, supported by a no-decompression dive time calculator.
The watch uses a Swiss mechanical self-winding movement in a 316L stainless steel case with a sapphire crystal and stainless steel bracelet.
The Doxa Sub 300T Professional is an orange-dial Swiss automatic dive watch with a 42.5 mm 316L stainless steel cushion case, sapphire crystal with anti-reflective coating, stainless steel bracelet, and 1200 m water resistance.
The reviewer highlights the watch's robust fit and finish, purposeful design, and historical significance as a professional dive tool. They conclude it is an excellent option for those seeking a dive watch, daily wearer, or GADA (Go Anywhere, Do Anything) timepiece under $2,500.
The review praises the SUB 300T for its excellent fit and finish, noting that it delivers a high-performance, authentic dive watch experience for under $2,000. It is described as a reliable, solid watch that functions as a fun weekend piece while maintaining professional capabilities.
The reviewer concludes that, unless COSC-certified movement accuracy is the primary requirement, the 300T is a better value proposition than the standard 300, offering superior water resistance and features for a lower price.
The review emphasizes the watch's professional-grade capability, noting its robust construction, comfortable wear despite its dimensions, and a highly functional, precise bezel that feels like a true tool designed for demanding conditions.
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| Attribute | Specification | Notes |
|---|---|---|
| Band Material | 316L stainless steel bracelet | |
| Band Width | 20 mm | mm |
| Battery Life | 38 days | days |
| Case Diameter | 42.5 mm | mm |
| Case Material | 316L stainless steel | |
| Case Thickness | 13.65 mm | mm |
| Clasp Type | folding clasp with DOXA fish symbol and ratcheting wetsuit extension | |
| Crystal Material | sapphire crystal with anti-reflective coating (scratch-resistant) | |
| Display Type | analog | |
| Features | Unidirectional rotating bezel (dive time/decompression calculator markings), No-decompression dive time calculator, Helium release valve, Sapphire crystal, Super-LumiNova luminescent inserts, Date | |
| Movement Type | Swiss mechanical automatic, self-winding | |
| Power Source | automatic (Swiss mechanical, self-winding) | |
| Water Resistance | 1200 m | m |

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