Longines HydroConquest Automatic vs Tissot Chemin des Tourelles Powermatic 80
Longines'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 Longines HydroConquest Automatic ($1,500–$2,500). The Chemin des Tourelles Powermatic 80 measures 42.0mm and is rated 50m (5 ATM). The HydroConquest Automatic justifies its premium with Swiss Made heritage and Automatic L888.5. Both represent excellent choices in the luxury watch category.
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Specifications Compared
| Feature | Longines HydroConquest Automatic | Tissot Chemin des Tourelles Powermatic 80 |
|---|---|---|
| Price | $1,500–$2,500 | $500–$1,000 |
| Case Size | 41mm | 42.0mm |
| Movement | Automatic L888.5 | Automatic Powermatic 80 (Caliber 80.111) |
| Caliber Type | ETA-Based Automatic with Silicon Balance Spring | ETA/Tissot Automatic |
| Power Reserve | 72 Hours | 80 Hours |
| Water Resistance | 300m (30 ATM) | 50m (5 ATM) |
| Crystal | Sapphire with Anti-Reflective Coating | Sapphire Crystal |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Swiss Made | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Longines's design language vs Tissot's approach
The Longines HydroConquest Automatic features a Stainless Steel case at 41mm with Sapphire with Anti-Reflective Coating 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 L888.5 vs Automatic Powermatic 80 (Caliber 80.111)
The HydroConquest Automatic runs the Automatic L888.5 (ETA-Based Automatic with Silicon Balance Spring, 72 Hours power reserve) at 25,200 vph (3.5 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). The Chemin des Tourelles Powermatic 80 offers a longer power reserve.
Wearability & Fit
41mm vs 42.0mm — different wrist presence
At 41mm, the HydroConquest Automatic wears more compactly on smaller wrists compared to the Chemin des Tourelles Powermatic 80 at 42.0mm. Water resistance differs: 300m (30 ATM) vs 50m (5 ATM).
Value & Cost of Ownership
Tissot sits in the lower tier
The Longines HydroConquest Automatic sits at $1,500–$2,500 and the Tissot Chemin des Tourelles Powermatic 80 at $500–$1,000. On the specs that outlast any price: the HydroConquest Automatic uses Sapphire with Anti-Reflective Coating with 72 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
300m (30 ATM) vs 50m (5 ATM)
The HydroConquest Automatic is rated to 300m (30 ATM) while the Chemin des Tourelles Powermatic 80 handles 50m (5 ATM). The HydroConquest Automatic is better suited for water activities.
Our Verdict
Longines
HydroConquest Automatic
Choose the Longines HydroConquest Automatic if you prioritize ETA-Based Automatic with Silicon Balance Spring engineering, Swiss Made craftsmanship, and 300m (30 ATM) water resistance. At $1,500–$2,500, it delivers Automatic L888.5 with 72 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 Longines HydroConquest Automatic and Tissot Chemin des Tourelles Powermatic 80 represent two distinct approaches to fine watchmaking — the Longines 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.