Mido Ocean Star GMT vs Tissot Chemin des Tourelles Powermatic 80
Mido's diver meets Tissot's dress watch
Quick Verdict
The Tissot Chemin des Tourelles Powermatic 80 ($500–$1,000) delivers ETA/Tissot Automatic technology in the tier below the Mido Ocean Star GMT ($1,000–$1,500). The Chemin des Tourelles Powermatic 80 measures 42.0mm and is rated 50m (5 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 Chemin des Tourelles Powermatic 80 |
|---|---|---|
| Price | $1,000–$1,500 | $500–$1,000 |
| Case Size | 44mm | 42.0mm |
| 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) | 50m (5 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 Chemin des Tourelles Powermatic 80 offers Stainless Steel construction at 42.0mm 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 Chemin des Tourelles Powermatic 80 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 42.0mm — different wrist presence
At 44mm, the Ocean Star GMT has a bolder wrist presence compared to the Chemin des Tourelles Powermatic 80 at 42.0mm. Water resistance differs: 200m (20 ATM) vs 50m (5 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 Chemin des Tourelles Powermatic 80 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 Chemin des Tourelles Powermatic 80. Service intervals are typically 5-7 years for both.
Water Resistance
200m (20 ATM) vs 50m (5 ATM)
The Ocean Star GMT is rated to 200m (20 ATM) while the Chemin des Tourelles Powermatic 80 handles 50m (5 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
Chemin des Tourelles Powermatic 80
Choose the Tissot Chemin des Tourelles Powermatic 80 if you value ETA/Tissot Automatic technology, Swiss Made heritage, and 42.0mm 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 Chemin des Tourelles Powermatic 80 represent two distinct approaches to fine watchmaking — the Mido bringing Swiss Made tradition while Tissot delivers Swiss Made engineering.
Frequently Asked Questions
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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.