# Doxa Sub 4000T Review by A.I. WatchMetrics

## Watch Summary
The Doxa SUB 4000T is a high-performance titanium professional dive watch with a distinctive cushion-shaped case and the iconic "Pac-Man" unidirectional bezel featuring luminescent squircle markers for superior low-light readability, powered by a reliable automatic Doxa 3120 movement (ETA 2824-2 based) offering 38 hours of power reserve, targeting serious underwater adventurers, technical divers, and collectors who value lightweight durability, extreme water resistance, and vintage-inspired tool watch aesthetics.

## Overall Watch Rating: 6.9/10.0

**Dials & Design Metric (9.1/10.0)** - The unique cushion case, Pac-Man bezel, and superlume dial deliver exceptional legibility and retro-modern appeal on par with vintage Blancpain Fifty Fathoms.
**Material Metric (9.4/10.0)** - Grade 2 titanium construction with double-domed sapphire AR crystal and refined brushing rivals luxury titanium divers like the Omega Seamaster 300.
**History & Innovation Metric (8.7/10.0)** - Doxa's pioneering Cousteau collaboration and bezel innovations place it among dive watch legends like the original Sub 300.
**Versatility Metric (7.9/10.0)** - Lightweight titanium and 1,200m rating make it ideal for diving, adventure, and casual wear, though thickness limits formal use.
**Brand Metric (7.3/10.0)** - Doxa commands respect for dive heritage akin to Sinn or Oris in the enthusiast premium segment.
**Functions Metric (7.5/10.0)** - Excellent lume, helium escape valve, screw-down crown, and precise bezel provide pro-level utility matching mid-tier Seiko Marinemasters.
**Rarity Metric (6.5/10.0)** - At its price point, it offers accessible exclusivity without limited production scarcity seen in microbrands.
**Movement Metric (5.7/10.0)** - The workhorse ETA-based automatic is reliable but unrefined compared to in-house movements in Grand Seiko divers.
**Complications Metric (0.0/10.0)** - As a pure three-hander tool watch, it lacks added complexities like GMT or chronograph found in multifunction divers.

## Total Performance Score (TPS): 4.0
## TPS Interpretation: Fair Value: The watch overdelivers on materials, design, and heritage for its price while the standard movement and no complications align with expectations.
## WM Collector Grade: C+
## Performance Insights: Standout materials, design, and history drive value in this titanium tool diver, providing solid performance slightly above implied price despite basic movement and complications.
## Watch Data
[Picture URL] - https://doxa.com/cdn/shop/files/SUB4000T_832.10.401.10.032_MAIN_1200x.jpg; [backPicture] - https://doxa.com/cdn/shop/files/SUB4000T_back.jpg; [lumePicture] - https://www.ablogtowatch.com/wp-content/uploads/2021/11/DOXA-SUB-4000T-Pac-Man-lume.jpg; [Nickname] - Titanium Pac-Man Diver; [Brand] - Doxa; [Model] - SUB 4000T; [Country] - Switzerland; [Product Link] - https://doxa.com/collections/sub-4000t; [reviewLink] - N/A; [Movement Type] - Automatic; [Movement Name] - Doxa 3120; [# MSRP] - 4990; [# Secondary] - 3900; [# Production] - Unlimited; [watchDescription] - Titanium cushion-case professional diver with Pac-Man bezel and 1200m water resistance; [caseWidth] - 42.3; [lugToLugLength] - 50; [thickness] - 12.8; [lug] - 22; [waterResist] - 1200; [powerReserve] - 38; [beatFrequency] - 28800; [lume] - Super-LumiNova; [jewels] - 25; [caseMaterial] - Grade 2 Titanium; [watchGlass] - Sapphire AR; [Bezel] - Unidirectional titanium Pac-Man; [caseback] - Solid titanium helium escape; [Crown] - Screw-down; [Strap] - Titanium bracelet; [Shape] - Cushion; [Dial] - Black; [caseShape] - Cushion; [Seconds] - 1; [Date] - 1; [Calendar] - 0; [Chiming] - 0; [Chronograph] - 0; [Compass] - 0; [dateCompilation] - 0; [DigitalDisplay] - 0; [Dress] - 0; [Field] - 0; [GMT] - 0; [Mechanical Alarm] - 0; [Moonphase] - 0; [Tourbillon] - 0; [worldTimer] - 0; [powerReserveIndicator] - 0; [Diver] - 1; [Pilot] - 0; [racing] - 0; [Skeleton] - 0; [Vintage] - 0; [StyleFormal] - 0; [StyleCasual] - 1; [StyleSports] - 1; [StyleTravel] - 0; [StyleAdventure] - 1; [StyleCollector] - 1; [StyleTool] - 1; [StyleStatement] - 1; [StyleVintage] - 1; [StyleSmart] - 0; [StyleCustom] - 0; [TPS_new] - 4.0; [TPSgrade] - C+; [TPSimpliedPrice] - 4900;

**A.I. WatchMetrics Review v37.10 Grok 4 Fast. December 21, 2025.**