# Mido Ocean Star GMT Special Edition Review by A.I. WatchMetrics

## Watch Summary
The Mido Ocean Star GMT Special Edition is a robust sports diver with GMT functionality, blending classic tool watch aesthetics like a unidirectional Pepsi-style ceramic bezel and black sunray dial with applied indices for excellent legibility; it targets value-driven enthusiasts seeking a Swiss-made travel companion for diving, adventure, or daily wear, powered by the COSC-certified automatic Caliber 80 GMT movement with an impressive 80-hour power reserve.

## Overall Watch Rating: 7.6/10.0

**Material Metric (9.5/10.0)** - Exceptional use of 316L stainless steel, double AR-coated sapphire, and ceramic bezel surpasses typical mid-range divers like the Christopher Ward C60.
**Movement Metric (9.6/10.0)** - The COSC-certified Caliber 80 GMT with silicon balance spring, 80-hour reserve, and solid finishing outshines standard ETA-based automatics in Hamilton Khaki models.
**Versatility Metric (8.5/10.0)** - Seamlessly transitions from underwater adventures to global travel and casual office settings, much like a well-rounded Omega Seamaster.
**Dials & Design Metric (8.5/10.0)** - Crisp sunray dial, vibrant ceramic bezel colors, and strong Super-LumiNova lume deliver standout visual appeal comparable to higher-end Tudor Black Bay GMTs.
**Functions Metric (7.5/10.0)** - Reliable timekeeping with independent GMT hand, date, and rotating bezel provides practical utility on par with entry-level GMTs from Citizen.
**History & Innovation Metric (7.3/10.0)** - Building on the 1944 Ocean Star legacy with modern long-power-reserve GMT innovation edges out typical Seiko Prospex heritage.
**Complications Metric (7.5/10.0)** - True GMT functionality plus date complication performs strongly against basic chronographs in Tissot PRX models.
**Brand Metric (5.5/10.0)** - Mido offers dependable Swatch Group quality and heritage akin to Hamilton, ideal for mid-tier collectors.
**Rarity Metric (4.9/10.0)** - Common production at its price point aligns with accessible unlimited-run divers like Oris Aquis.

## Total Performance Score (TPS): 6.2
## TPS Interpretation: Solid Value: The watch exceeds expectations in movement and materials for its price, delivering premium features typically found in costlier Swiss GMT divers.

## WM Collector Grade: B+
## Performance Insights: Standout movement and material scores drive strong value against an implied price of $1,050, though rarity holds it back from elite status.

## Watch Data
[Picture URL] - https://www.mido.com/sites/g/files/qkyfhe626/files/styles/product_detail/public/2023-08/M026.439.36.051.00_Front.png; [backPicture] - https://www.mido.com/sites/g/files/qkyfhe626/files/styles/product_detail/public/2023-08/M026.439.36.051.00_Back.png; [lumePicture] - https://www.ablogtowatch.com/wp-content/uploads/2023/09/Mido-Ocean-Star-GMT-Special-Edition-lume.jpg; [Nickname] - Pepsi GMT Diver; [Brand] - Mido; [Model] - Ocean Star GMT Special Edition; [Country] - Switzerland; [Product Link] - https://www.mido.com/en-us/watches/ocean-star/ocean-star-gmt-m0264393605101; [reviewLink] - ; [Movement Type] - Automatic; [Movement Name] - Caliber 80 GMT; [# MSRP] - 1710; [# Secondary] - 1500; [# Production] - Unlimited; [watchDescription] - 44mm stainless steel sports GMT diver with unidirectional Pepsi ceramic bezel, black sunray dial, COSC-certified automatic movement, 80-hour power reserve, and 200m water resistance; [caseWidth] - 44; [lugToLugLength] - 51.9; [thickness] - 14.55; [lug] - 22; [waterResist] - 200; [powerReserve] - 80; [beatFrequency] - 21600; [lume] - Super-LumiNova; [jewels] - 25; [caseMaterial] - Stainless Steel; [watchGlass] - Sapphire (double AR); [Bezel] - Ceramic (Pepsi unidirectional); [caseback] - Sapphire (exhibition); [Crown] - Screw-down; [Strap] - Stainless Steel Bracelet; [Shape] - Round; [Dial] - Black Sunray; [caseShape] - Round; [Seconds] - 1; [Date] - 1; [Calendar] - 0; [Chiming] - 0; [Chronograph] - 0; [Compass] - 0; [dateCompilation] - 0; [DigitalDisplay] - 0; [Dress] - 0; [Field] - 0; [GMT] - 1; [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] - 1; [StyleAdventure] - 1; [StyleCollector] - 0; [StyleTool] - 1; [StyleStatement] - 0; [StyleVintage] - 0; [StyleSmart] - 0; [StyleCustom] - 0; [TPS_new] - 6.2; [TPSgrade] - B+; [TPSimpliedPrice] - 1050;

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