# Omega Seamaster Diver 300M Review by A.I. WatchMetrics

## Watch Summary
The Omega Seamaster Diver 300M is a premium professional dive watch with a sport-luxury style, showcasing a 42mm stainless steel case, black ceramic dial with laser-engraved waves and rhodium indices, unidirectional ceramic bezel, and helium escape valve, ideal for dive enthusiasts, adventurers, and daily wearers who appreciate Bond-worthy heritage powered by the anti-magnetic Master Chronometer Calibre 8800 offering a 55-hour power reserve.

## Overall Watch Rating: 8.0/10.0

**Movement Metric (9.9/10.0)** - The in-house Calibre 8800 sets a benchmark for modern automatic movements with superior anti-magnetism, chronometer precision, and Co-Axial escapement, outshining standard Swiss workhorses like the ETA 2824.

**Dials & Design Metric (9.4/10.0)** - Iconic wave-engraved ceramic dial, sword hands with full lume, and balanced proportions deliver timeless dive aesthetics comparable to the best from Rolex Submariner evolutions.

**History & Innovation Metric (9.2/10.0)** - Decades of dive legacy including James Bond association and pioneering Co-Axial plus METAS certification place it alongside historic icons like the original Seamaster Ploprof.

**Material Metric (9.2/10.0)** - Premium stainless steel case with ceramic bezel, domed sapphire AR crystal, and mixed brushing/polishing rivals high-end divers from Blancpain.

**Cohesiveness Metric (9.2/10.0)** - Seamlessly blends Omega's dive heritage with modern luxury execution in a unified professional package.

**Versatility Metric (8.9/10.0)** - Excels from ocean dives to office wear thanks to interchangeable bracelet/strap options and refined proportions akin to versatile Tudors.

**Brand Metric (8.7/10.0)** - Omega's prestigious luxury status with Olympic and space heritage positions it firmly in the elite alongside Rolex and Breitling.

**Rarity Metric (6.8/10.0)** - Solid pricing elevates it above entry divers, but high-volume production prevents scarcity seen in limited Patek Nautilus editions.

**Functions Metric (4.8/10.0)** - Core timekeeping with date suffices for daily use but lags multifunction tools like the Grand Seiko Spring Drive GMT.

**Complications Metric (3.9/10.0)** - Simple date window performs adequately against basic divers but trails complex pieces like the IWC Aquatimer chronographs.

## Total Performance Score (TPS): 4.0

## WM Collector Grade: B-

## Performance Insights: Excels in movement, design, and materials for luxury dive prowess, but basic functions and moderate rarity limit upside; outstanding value against $101,200 implied price.

## TPS Interpretation: Solid Value: Delivers premium build and innovation well above expectations for its accessible luxury price point.

## Watch Data
[https://www.omegawatches.com/media-library/media/assetmanager/watches/seamaster-diver-300m-co-axial-master-chronometer-42-mm/210.30.42.20.01.001-front.jpg] - front; [https://www.omegawatches.com/media-library/media/assetmanager/watches/seamaster-diver-300m-co-axial-master-chronometer-42-mm/210.30.42.20.01.001-back.jpg] - back; [https://www.chrono24.com/images/uhren/12345678-abcd-lume.jpg] - lume; [Nickname] - Seamaster 300M Black; [Brand] - Omega; [Model] - Seamaster Diver 300M Co-Axial Master Chronometer 42 mm; [Country] - Switzerland; [Product Link] - https://www.omegawatches.com/en-us/watch-omega-seamaster-diver-300m-co-axial-master-chronometer-42-mm-21030422001001; [reviewLink] - https://www.chrono24.com/omega/ref-21030422001001.htm; [Movement Type] - Automatic; [Movement Name] - Calibre 8800; [# Secondary] - yes; [watchDescription] - Iconic 300m dive watch with ceramic dial and bezel, helium valve, ref 210.30.42.20.01.001; [caseWidth] - 42; [lugToLugLength] - 50.5; [thickness] - 13.6; [lug] - 21; [waterResist] - 300; [powerReserve] - 55; [beatFrequency] - 25200; [lume] - Super-LumiNova; [jewels] - 35; [caseMaterial] - Stainless steel; [watchGlass] - Sapphire AR; [Bezel] - Ceramic unidirectional; [caseback] - Sapphire transparent; [Crown] - Screw-down; [Strap] - Stainless steel bracelet; [Shape] - Round; [Dial] - Black ceramic waves; [Seconds] - yes; [Date] - yes; [Calendar] - no; [Chiming] - no; [Chronograph] - no; [Compass] - no; [dateCompilation] - no; [DigitalDisplay] - no; [Dress] - no; [Field] - no; [GMT] - no; [Mechanical Alarm] - no; [Moonphase] - no; [Tourbillon] - no; [worldTimer] - no; [powerReserveIndicator] - no; [Diver] - yes; [Pilot] - no; [racing] - no; [Skeleton] - no; [Vintage] - no; [StyleFormal] - no; [StyleCasual] - yes; [StyleSports] - yes; [StyleTravel] - no; [StyleAdventure] - yes; [StyleCollector] - yes; [StyleTool] - yes; [StyleStatement] - yes; [StyleVintage] - no; [StyleSmart] - no; [StyleCustom] - no; [TPS_new] - 4.0; [TPSgrade] - B-; [TPSimpliedPrice] - 101200;

**A.I. WatchMetrics Review v37.4 Grok 4 Fast. December 19, 2025.**