Updated
Breguet Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial) vs Tissot Le Locle Powermatic 80
Breguet's timepiece 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 Breguet Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial) ($10,000–$25,000). The Le Locle Powermatic 80 measures 39.3mm and is rated 30m (3 ATM). The Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial) justifies its premium with Swiss Made heritage and Automatic, Breguet calibre 532 (curved to the case). Both represent excellent choices in the luxury watch category.
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Breguet
Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial)
$10,000–$25,000
Specifications Compared
| Feature | Breguet Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial) | Tissot Le Locle Powermatic 80 |
|---|---|---|
| Price | $10,000–$25,000 | $500–$1,000 |
| Case Size | 35 x 29.6mm, curved tonneau | 39.3mm |
| Movement | Automatic, Breguet calibre 532 (curved to the case) | Powermatic 80.111 |
| Caliber Type | Breguet 532, per Breguet for the Heritage 3660 | ETA-Based Automatic |
| Power Reserve | About 40 hours | 80 Hours |
| Water Resistance | 30m (3 ATM) | 30m (3 ATM) |
| Crystal | Sapphire Crystal, curved | Sapphire Crystal |
| Case Material | 18k white gold, fluted caseband | Stainless Steel |
| Origin | Swiss Made | Swiss Made (Swatch Group) |
Category-by-Category Analysis
Design & Aesthetics
Breguet's design language vs Tissot's approach
The Breguet Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial) features a 18k white gold, fluted caseband case at 35 x 29.6mm, curved tonneau with Sapphire Crystal, curved 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, Breguet calibre 532 (curved to the case) vs Powermatic 80.111
The Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial) runs the Automatic, Breguet calibre 532 (curved to the case) (Breguet 532, per Breguet for the Heritage 3660, About 40 hours power reserve) at standard 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
35 x 29.6mm, curved tonneau vs 39.3mm — different wrist presence
At 35 x 29.6mm, curved tonneau, the Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial) wears more compactly on smaller wrists compared to the Le Locle Powermatic 80 at 39.3mm. Water resistance differs: 30m (3 ATM) vs 30m (3 ATM).
Value & Cost of Ownership
Tissot sits in the lower tier
The Breguet Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial) sits at $10,000–$25,000 and the Tissot Le Locle Powermatic 80 at $500–$1,000. On the specs that outlast any price: the Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial) uses Sapphire Crystal, curved with About 40 hours, against Sapphire Crystal and 80 Hours on the Le Locle Powermatic 80. Service intervals are typically 5-7 years for both.
Water Resistance
30m (3 ATM) vs 30m (3 ATM)
The Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial) is rated to 30m (3 ATM) while the Le Locle Powermatic 80 handles 30m (3 ATM). Both offer identical water resistance ratings.
Our Verdict
Breguet
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 prioritize Breguet 532, per Breguet for the Heritage 3660 engineering, Swiss Made craftsmanship, and 30m (3 ATM) water resistance. At $10,000–$25,000, it delivers Automatic, Breguet calibre 532 (curved to the case) with About 40 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 Breguet Heritage 3660BB (18k white gold, tonneau, silver engine-turned dial) and Tissot Le Locle Powermatic 80 represent two distinct approaches to fine watchmaking — the Breguet bringing Swiss Made tradition while Tissot delivers Swiss Made (Swatch Group) 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.