Mido Ocean Star GMT vs Tissot PRX Powermatic 80 35mm
Mido's diver meets Tissot's timepiece
Quick Verdict
The Tissot PRX Powermatic 80 35mm ($500–$1,000) delivers ETA/Tissot Automatic technology in the tier below the Mido Ocean Star GMT ($1,000–$1,500). The PRX Powermatic 80 35mm measures 35mm and is rated 100m (10 ATM). The Ocean Star GMT justifies its premium with Swiss Made heritage and Automatic Caliber 80 (Base ETA C07.661). Both represent excellent choices in the luxury watch category.
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Specifications Compared
| Feature | Mido Ocean Star GMT | Tissot PRX Powermatic 80 35mm |
|---|---|---|
| Price | $1,000–$1,500 | $500–$1,000 |
| Case Size | 44mm | 35mm |
| Movement | Automatic Caliber 80 (Base ETA C07.661) | Automatic Powermatic 80 (Caliber 80.111) |
| Caliber Type | Automatic (ETA C07.661 base) | ETA/Tissot Automatic |
| Power Reserve | 80 Hours | 80 Hours |
| Water Resistance | 200m (20 ATM) | 100m (10 ATM) |
| Crystal | Sapphire with Double-sided AR | Sapphire Crystal |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Swiss Made | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Mido's design language vs Tissot's approach
The Mido Ocean Star GMT features a Stainless Steel case at 44mm with Sapphire with Double-sided AR protection. The Tissot PRX Powermatic 80 35mm offers Stainless Steel construction at 35mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic Caliber 80 (Base ETA C07.661) vs Automatic Powermatic 80 (Caliber 80.111)
The Ocean Star GMT runs the Automatic Caliber 80 (Base ETA C07.661) (Automatic (ETA C07.661 base), 80 Hours power reserve) at 21,600 vph (3 Hz) frequency. The PRX Powermatic 80 35mm uses the Automatic Powermatic 80 (Caliber 80.111) (ETA/Tissot Automatic, 80 Hours reserve) at 21,600 vph (3 Hz). Power reserves are closely matched.
Wearability & Fit
44mm vs 35mm — different wrist presence
At 44mm, the Ocean Star GMT has a bolder wrist presence compared to the PRX Powermatic 80 35mm at 35mm. Water resistance differs: 200m (20 ATM) vs 100m (10 ATM).
Value & Cost of Ownership
Tissot sits in the lower tier
The Mido Ocean Star GMT sits at $1,000–$1,500 and the Tissot PRX Powermatic 80 35mm at $500–$1,000. On the specs that outlast any price: the Ocean Star GMT uses Sapphire with Double-sided AR with 80 Hours, against Sapphire Crystal and 80 Hours on the PRX Powermatic 80 35mm. Service intervals are typically 5-7 years for both.
Water Resistance
200m (20 ATM) vs 100m (10 ATM)
The Ocean Star GMT is rated to 200m (20 ATM) while the PRX Powermatic 80 35mm handles 100m (10 ATM). The Ocean Star GMT is better suited for water activities.
Our Verdict
Mido
Ocean Star GMT
Choose the Mido Ocean Star GMT if you prioritize Automatic (ETA C07.661 base) engineering, Swiss Made craftsmanship, and 200m (20 ATM) water resistance. At $1,000–$1,500, it delivers Automatic Caliber 80 (Base ETA C07.661) with 80 Hours power reserve.
Check Price on AmazonTissot
PRX Powermatic 80 35mm
Choose the Tissot PRX Powermatic 80 35mm if you value ETA/Tissot Automatic technology, Swiss Made heritage, and 35mm proportions. At $500–$1,000, the Automatic Powermatic 80 (Caliber 80.111) with 80 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Mido Ocean Star GMT and Tissot PRX Powermatic 80 35mm represent two distinct approaches to fine watchmaking — the Mido bringing Swiss Made tradition while Tissot delivers Swiss Made engineering.
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How This Page Was Made
Our comparisons are generated from a hand-maintained specification database and reviewed under our editorial standards. We use AI tools to assemble pages from that data. We don’t invent specs: every number traces back to the database, and when we correct an entry, the fix is applied site-wide. As an Amazon Associate, The Horologist earns from qualifying purchases.