Updated
Tissot PRX Powermatic 80 vs Breguet Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial)
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 Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial) ($10,000–$25,000). The PRX Powermatic 80 measures 40mm and is rated 100m (10 ATM). The Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial) counters with Swiss Made craftsmanship and 30m (3 ATM) water resistance. Both are exceptional timepieces for their respective tiers.
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Breguet
Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial)
$10,000–$25,000
Specifications Compared
| Feature | Tissot PRX Powermatic 80 | Breguet Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial) |
|---|---|---|
| Price | $500–$1,000 | $10,000–$25,000 |
| Case Size | 40mm | 35 x 29.6mm, curved tonneau |
| Movement | Automatic Powermatic 80.111 | Automatic, Breguet calibre 532 (curved to the case) |
| Caliber Type | In-House Automatic (ETA C07.111 base) | Breguet 532, per Breguet for the Heritage 3660 |
| Power Reserve | 80 Hours | About 40 hours |
| Water Resistance | 100m (10 ATM) | 30m (3 ATM) |
| Crystal | Scratch-resistant Sapphire | Sapphire Crystal, curved |
| Case Material | 316L Stainless Steel | 18k white 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 Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial) offers 18k white gold, fluted caseband construction at 35 x 29.6mm, curved tonneau with Sapphire Crystal, curved. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic Powermatic 80.111 vs Automatic, Breguet calibre 532 (curved to the case)
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 Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial) uses the Automatic, Breguet calibre 532 (curved to the case) (Breguet 532, per Breguet for the Heritage 3660, About 40 hours reserve) at standard. The PRX Powermatic 80 edges ahead on power reserve.
Wearability & Fit
40mm vs 35 x 29.6mm, curved tonneau — different wrist presence
At 40mm, the PRX Powermatic 80 has a bolder wrist presence compared to the Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial) at 35 x 29.6mm, curved tonneau. 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 Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial) 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, curved and About 40 hours on the Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial). 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 Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial) 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
Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial)
Choose the Breguet Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial) if you value Breguet 532, per Breguet for the Heritage 3660 technology, Swiss Made heritage, and 35 x 29.6mm, curved tonneau proportions. At $10,000–$25,000, the Automatic, Breguet calibre 532 (curved to the case) with About 40 hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Tissot PRX Powermatic 80 and Breguet Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial) 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.