Longines HydroConquest Automatic vs Tissot Le Locle Powermatic 80
Longines's diver meets Tissot's dress watch
Quick Verdict
The Tissot Le Locle Powermatic 80 ($500–$1,000) delivers ETA-Based Automatic technology in the tier below the Longines HydroConquest Automatic ($1,500–$2,500). The Le Locle Powermatic 80 measures 39.3mm and is rated 30m (3 ATM). The HydroConquest Automatic justifies its premium with Swiss Made heritage and Automatic L888.5. Both represent excellent choices in the luxury watch category.
Transparency — We earn a small commission on purchases made through our Amazon links. This doesn't affect our editorial independence.
Specifications Compared
| Feature | Longines HydroConquest Automatic | Tissot Le Locle Powermatic 80 |
|---|---|---|
| Price | $1,500–$2,500 | $500–$1,000 |
| Case Size | 41mm | 39.3mm |
| Movement | Automatic L888.5 | Powermatic 80.111 |
| Caliber Type | ETA-Based Automatic with Silicon Balance Spring | ETA-Based Automatic |
| Power Reserve | 72 Hours | 80 Hours |
| Water Resistance | 300m (30 ATM) | 30m (3 ATM) |
| Crystal | Sapphire with Anti-Reflective Coating | Sapphire Crystal |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Swiss Made | Swiss Made (Swatch Group) |
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 Le Locle Powermatic 80 offers Stainless Steel construction at 39.3mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic L888.5 vs Powermatic 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 Le Locle Powermatic 80 uses the Powermatic 80.111 (ETA-Based Automatic, 80 Hours reserve) at 21,600 vph (3 Hz). The Le Locle Powermatic 80 offers a longer power reserve.
Wearability & Fit
41mm vs 39.3mm — different wrist presence
At 41mm, the HydroConquest Automatic has a bolder wrist presence compared to the Le Locle Powermatic 80 at 39.3mm. Water resistance differs: 300m (30 ATM) vs 30m (3 ATM).
Value & Cost of Ownership
Tissot sits in the lower tier
The Longines HydroConquest Automatic sits at $1,500–$2,500 and the Tissot Le Locle 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 Le Locle Powermatic 80. Service intervals are typically 5-7 years for both.
Water Resistance
300m (30 ATM) vs 30m (3 ATM)
The HydroConquest Automatic is rated to 300m (30 ATM) while the Le Locle Powermatic 80 handles 30m (3 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
Le Locle Powermatic 80
Choose the Tissot Le Locle Powermatic 80 if you value ETA-Based Automatic technology, Swiss Made (Swatch Group) heritage, and 39.3mm proportions. At $500–$1,000, the Powermatic 80.111 with 80 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Longines HydroConquest Automatic and Tissot Le Locle Powermatic 80 represent two distinct approaches to fine watchmaking — the Longines bringing Swiss Made tradition while Tissot delivers Swiss Made (Swatch Group) engineering.
Frequently Asked Questions
More Comparisons
Explore These Watches
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.