# Omega Seamaster Great White GMT 300M Review by A.I. WatchMetrics

## Watch Summary
The Omega Seamaster Diver 300M GMT Great White is a premium titanium dive watch blending professional tool-watch robustness with traveler-friendly GMT functionality, featuring a distinctive matte white dial, blue ceramic bidirectional GMT bezel, and helium escape valve for saturation diving; it's targeted at adventure-seeking professionals and collectors who value METAS-certified precision, with the Co-Axial Master Chronometer Calibre 8806 offering 55 hours of power reserve and anti-magnetic resistance up to 15,000 gauss.

## Overall Watch Rating: 8.8/10.0

**Material Metric (9.6/10.0)** - Grade 2 titanium case paired with a ceramic bezel and domed sapphire crystal with dual-sided AR coating rivals the best in high-end divers like the Rolex Yacht-Master.

**Movement Metric (9.3/10.0)** - The Calibre 8806 delivers exceptional METAS chronometer accuracy, Co-Axial escapement smoothness, and 55-hour reserve, on par with top automatic GMTs from Grand Seiko.

**Dials & Design Metric (9.2/10.0)** - The bold white dial with blue accents and laser-engraved wave pattern stands out uniquely among black-dial divers, echoing innovative designs like the Blancpain Fifty Fathoms Bathyscaphe.

**Versatility Metric (9.1/10.0)** - This 44mm GMT diver transitions seamlessly from deep-sea dives to global travel and office wear, outperforming single-function tools like the basic Submariner.

**Brand Metric (8.8/10.0)** - Omega's storied luxury heritage and consistent innovation secure a score comparable to established icons like Audemars Piguet in reliability and prestige.

**History & Innovation Metric (8.7/10.0)** - Rooted in James Bond Seamaster legacy with pioneering METAS certification and Co-Axial tech, it matches the historical impact of Omega's Speedmaster milestones.

**Functions Metric (8.5/10.0)** - Hours, minutes, seconds, date, and 24-hour GMT hand provide robust daily utility akin to the Rolex GMT-Master II.

**Rarity Metric (7.6/10.0)** - At around $9,200 retail with moderate Omega production volumes, it offers solid exclusivity similar to other titanium limited-production divers.

**Complications Metric (7.4/10.0)** - The practical GMT function with independent 24-hour hand performs reliably like those in the IWC Pilot's Watch GMT but lacks higher-end additions like true travelers.

## Total Performance Score (TPS): 8.2

## WM Collector Grade: A

## Performance Insights: Exceptional material quality and movement precision drive high scores, delivering strong value against its $9,200 price with versatile GMT appeal outweighing moderate rarity.

## TPS Interpretation: Strong Value: The watch exceeds expectations for its price with premium build and innovative features suited for demanding enthusiasts.

## Watch Data
[https://www.omegawatches.com/media/catalog/product/2/1/0/210_32_44_51_01_001_p01_xxl.jpg] - Front; [https://www.omegawatches.com/media/catalog/product/2/1/0/210_32_44_51_01_001_p02_xxl.jpg] - Back; [https://www.ablogtowatch.com/wp-content/uploads/2023/11/Omega-Seamaster-Diver-300M-GMT-Great-White-21032445101001-17.jpg] - Lume; [Great White GMT 300M] - Omega Seamaster Diver 300M GMT Great White; [Omega] - Seamaster Diver 300M GMT Great White; [Switzerland] - https://www.omegawatches.com/en-us/watch-omega-seamaster-diver-300-m-co-axial-master-chronometer-44-mm-21032445101001; [https://www.hodinkee.com/articles/omega-seamaster-diver-300m-gmt-great-white] - [Automatic] - Co-Axial Master Chronometer Calibre 8806; [# Secondary] - 1; [Professional titanium dive watch with white dial, blue GMT bezel, helium escape valve, and METAS certification for extreme reliability] - 44; [52] - 15.6; [22] - 300; [55] - 25200; [Super-LumiNova full lume on hands, markers, bezel] - 35; [Grade 2 Titanium] - Sapphire (domed, antireflective both sides); [Unidirectional rotating blue ceramic with white GMT scale and Liquidmetal dive scale] - Sapphire display; [Screw-down] - Titanium bracelet with foldover clasp; [Round] - Matte white with laser-ablated waves, blue indices; [Yes] - Yes; [No] - No; [No] - No; [No] - No; [No] - No; [Yes] - No; [No] - No; [No] - No; [No] - No; [No] - No; [No] - No; [No] - No; [Yes] - No; [No] - No; [No] - No; [No] - No; [No] - No; [Yes] - Yes; [Yes] - Yes; [Yes] - No; [No] - No; [No] - No; [No] - No; [No] - No; [No] - No; [No] - No; [No] - No; [No] - [8.2] - A; [$9200];
**A.I. WatchMetrics Review v37.4 Grok 4 Fast. December 19, 2025.**