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Tissot PRX Powermatic 80 vs Breguet Classique 7137 Power Reserve Moonphase (18k yellow gold)
Tissot's timepiece meets Breguet's dress watch
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 7137 Power Reserve Moonphase (18k yellow gold) ($25,000+). The PRX Powermatic 80 measures 40mm and is rated 100m (10 ATM). The Classique 7137 Power Reserve Moonphase (18k yellow gold) counters with Swiss Made craftsmanship and 30m (3 ATM) water resistance. Both are exceptional watches for their respective tiers.
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Specifications Compared
| Feature | Tissot PRX Powermatic 80 | Breguet Classique 7137 Power Reserve Moonphase (18k yellow gold) |
|---|---|---|
| Price | $500–$1,000 | $25,000+ |
| Case Size | 40mm | 39mm |
| Movement | Automatic Powermatic 80.111 | Automatic, Breguet Calibre 502.3 QSE1 (ultra-thin, off-centre rotor) |
| Caliber Type | In-House Automatic (ETA C07.111 base) | Breguet 502.3 QSE1, automatic, silicon escapement |
| Power Reserve | 80 Hours | About 45 hours, with indicator |
| Water Resistance | 100m (10 ATM) | 30m (3 ATM) |
| Crystal | Scratch-resistant Sapphire | Sapphire Crystal, sapphire caseback |
| Case Material | 316L Stainless Steel | 18k yellow gold, fluted caseband |
| 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 7137 Power Reserve Moonphase (18k yellow gold) offers 18k yellow gold, fluted caseband construction at 39mm with Sapphire Crystal, sapphire caseback. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic Powermatic 80.111 vs Automatic, Breguet Calibre 502.3 QSE1 (ultra-thin, 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 7137 Power Reserve Moonphase (18k yellow gold) uses the Automatic, Breguet Calibre 502.3 QSE1 (ultra-thin, off-centre rotor) (Breguet 502.3 QSE1, automatic, silicon escapement, About 45 hours, with indicator reserve) at standard. The PRX Powermatic 80 edges ahead on power reserve.
Wearability & Fit
40mm vs 39mm — different wrist presence
At 40mm, the PRX Powermatic 80 has a bolder wrist presence compared to the Classique 7137 Power Reserve Moonphase (18k yellow gold) at 39mm. 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 7137 Power Reserve Moonphase (18k yellow gold) at $25,000+. On the specs that outlast any price: the PRX Powermatic 80 uses Scratch-resistant Sapphire with 80 Hours, against Sapphire Crystal, sapphire caseback and About 45 hours, with indicator on the Classique 7137 Power Reserve Moonphase (18k yellow gold). 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 7137 Power Reserve Moonphase (18k yellow gold) 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 7137 Power Reserve Moonphase (18k yellow gold)
Choose the Breguet Classique 7137 Power Reserve Moonphase (18k yellow gold) if you value Breguet 502.3 QSE1, automatic, silicon escapement technology, Swiss Made heritage, and 39mm proportions. At $25,000+, the Automatic, Breguet Calibre 502.3 QSE1 (ultra-thin, off-centre rotor) with About 45 hours, with indicator power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Tissot PRX Powermatic 80 and Breguet Classique 7137 Power Reserve Moonphase (18k yellow gold) represent two distinct approaches to fine watchmaking — 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.