Updated
Tissot PRX Powermatic 80 vs Breguet Classique Ultra Slim 5157BB/11/9V6 (18k white gold, silvered guilloche dial, black alligator strap)
Two timepieces compared — $500–$1,000 vs $10,000–$25,000
Quick Verdict
The Tissot PRX Powermatic 80 ($500–$1,000) offers In-House Automatic (ETA C07.111 base) precision in the tier below the Breguet Classique Ultra Slim 5157BB/11/9V6 (18k white gold, silvered guilloche dial, black alligator strap) ($10,000–$25,000). The PRX Powermatic 80 measures 40mm and is rated 100m (10 ATM). The Classique Ultra Slim 5157BB/11/9V6 (18k white gold, silvered guilloche dial, black alligator strap) counters with Swiss Made craftsmanship and 30m (3 ATM) water resistance. Both are exceptional timepieces for their respective tiers.
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Breguet
Classique Ultra Slim 5157BB/11/9V6 (18k white gold, silvered guilloche dial, black alligator strap)
$10,000–$25,000
Specifications Compared
| Feature | Tissot PRX Powermatic 80 | Breguet Classique Ultra Slim 5157BB/11/9V6 (18k white gold, silvered guilloche dial, black alligator strap) |
|---|---|---|
| Price | $500–$1,000 | $10,000–$25,000 |
| Case Size | 40mm | 38mm, about 5.4mm thick |
| Movement | Automatic Powermatic 80.111 | Automatic, Breguet calibre 502.3, about 2.4mm thick, off-centre rotor |
| Caliber Type | In-House Automatic (ETA C07.111 base) | 502.3, automatic |
| Power Reserve | 80 Hours | About 45 hours |
| Water Resistance | 100m (10 ATM) | 30m (3 ATM) |
| Crystal | Scratch-resistant Sapphire | Sapphire Crystal |
| Case Material | 316L Stainless Steel | 18k white gold, fluted caseband, welded lugs, sapphire caseback |
| Origin | Swiss Made | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Tissot's design language vs Breguet's approach
The Tissot PRX Powermatic 80 features a 316L Stainless Steel case at 40mm with Scratch-resistant Sapphire protection. The Breguet Classique Ultra Slim 5157BB/11/9V6 (18k white gold, silvered guilloche dial, black alligator strap) offers 18k white gold, fluted caseband, welded lugs, sapphire caseback construction at 38mm, about 5.4mm thick with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic Powermatic 80.111 vs Automatic, Breguet calibre 502.3, about 2.4mm thick, off-centre rotor
The PRX Powermatic 80 runs the Automatic Powermatic 80.111 (In-House Automatic (ETA C07.111 base), 80 Hours power reserve) at 21,600 vph (3 Hz) frequency. The Classique Ultra Slim 5157BB/11/9V6 (18k white gold, silvered guilloche dial, black alligator strap) uses the Automatic, Breguet calibre 502.3, about 2.4mm thick, off-centre rotor (502.3, automatic, About 45 hours reserve) at standard. The PRX Powermatic 80 edges ahead on power reserve.
Wearability & Fit
40mm vs 38mm, about 5.4mm thick — different wrist presence
At 40mm, the PRX Powermatic 80 has a bolder wrist presence compared to the Classique Ultra Slim 5157BB/11/9V6 (18k white gold, silvered guilloche dial, black alligator strap) at 38mm, about 5.4mm thick. Water resistance differs: 100m (10 ATM) vs 30m (3 ATM).
Value & Cost of Ownership
Tissot sits in the lower tier
The Tissot PRX Powermatic 80 sits at $500–$1,000 and the Breguet Classique Ultra Slim 5157BB/11/9V6 (18k white gold, silvered guilloche dial, black alligator strap) at $10,000–$25,000. On the specs that outlast any price: the PRX Powermatic 80 uses Scratch-resistant Sapphire with 80 Hours, against Sapphire Crystal and About 45 hours on the Classique Ultra Slim 5157BB/11/9V6 (18k white gold, silvered guilloche dial, black alligator strap). Service intervals are typically 5-7 years for both.
Water Resistance
100m (10 ATM) vs 30m (3 ATM)
The PRX Powermatic 80 is rated to 100m (10 ATM) while the Classique Ultra Slim 5157BB/11/9V6 (18k white gold, silvered guilloche dial, black alligator strap) handles 30m (3 ATM). The PRX Powermatic 80 is better suited for water activities.
Our Verdict
Tissot
PRX Powermatic 80
Choose the Tissot PRX Powermatic 80 if you prioritize In-House Automatic (ETA C07.111 base) engineering, Swiss Made craftsmanship, and 100m (10 ATM) water resistance. At $500–$1,000, it delivers Automatic Powermatic 80.111 with 80 Hours power reserve.
Check Price on AmazonBreguet
Classique Ultra Slim 5157BB/11/9V6 (18k white gold, silvered guilloche dial, black alligator strap)
Choose the Breguet Classique Ultra Slim 5157BB/11/9V6 (18k white gold, silvered guilloche dial, black alligator strap) if you value 502.3, automatic technology, Swiss Made heritage, and 38mm, about 5.4mm thick proportions. At $10,000–$25,000, the Automatic, Breguet calibre 502.3, about 2.4mm thick, off-centre rotor with About 45 hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Tissot PRX Powermatic 80 and Breguet Classique Ultra Slim 5157BB/11/9V6 (18k white gold, silvered guilloche dial, black alligator strap) represent two distinct approaches to the timepiece category — the Tissot bringing Swiss Made tradition while Breguet 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.