Updated
Breguet Classique 7137 Power Reserve Moonphase (18k yellow gold) vs Rolex Day-Date 36 "President"
Breguet's dress watch meets Rolex's timepiece
Quick Verdict
The Breguet Classique 7137 Power Reserve Moonphase (18k yellow gold) ($25,000+) and Rolex Day-Date 36 "President" ($25,000+) are closely matched timepieces at similar price points. The Classique 7137 Power Reserve Moonphase (18k yellow gold) emphasizes Breguet 502.3 QSE1, automatic, silicon escapement engineering while the Day-Date 36 "President" focuses on Swiss Made craftsmanship.
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Specifications Compared
| Feature | Breguet Classique 7137 Power Reserve Moonphase (18k yellow gold) | Rolex Day-Date 36 "President" |
|---|---|---|
| Price | $25,000+ | $25,000+ |
| Case Size | 39mm | 36mm |
| Movement | Automatic, Breguet Calibre 502.3 QSE1 (ultra-thin, off-centre rotor) | Automatic Caliber 3055 |
| Caliber Type | Breguet 502.3 QSE1, automatic, silicon escapement | Rolex In-House Automatic, COSC chronometer |
| Power Reserve | About 45 hours, with indicator | About 42 hours |
| Water Resistance | 30m (3 ATM) | 100m (10 ATM) when new; have a vintage piece pressure-tested |
| Crystal | Sapphire Crystal, sapphire caseback | Sapphire Crystal with Cyclops |
| Case Material | 18k yellow gold, fluted caseband | 18k yellow gold |
| Origin | Swiss Made | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Breguet's design language vs Rolex's approach
The Breguet Classique 7137 Power Reserve Moonphase (18k yellow gold) features a 18k yellow gold, fluted caseband case at 39mm with Sapphire Crystal, sapphire caseback protection. The Rolex Day-Date 36 "President" offers 18k yellow gold construction at 36mm with Sapphire Crystal with Cyclops. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic, Breguet Calibre 502.3 QSE1 (ultra-thin, off-centre rotor) vs Automatic Caliber 3055
The Classique 7137 Power Reserve Moonphase (18k yellow gold) runs the Automatic, Breguet Calibre 502.3 QSE1 (ultra-thin, off-centre rotor) (Breguet 502.3 QSE1, automatic, silicon escapement, About 45 hours, with indicator power reserve) at standard frequency. The Day-Date 36 "President" uses the Automatic Caliber 3055 (Rolex In-House Automatic, COSC chronometer, About 42 hours reserve) at standard. The Classique 7137 Power Reserve Moonphase (18k yellow gold) edges ahead on power reserve.
Wearability & Fit
39mm vs 36mm — different wrist presence
At 39mm, the Classique 7137 Power Reserve Moonphase (18k yellow gold) has a bolder wrist presence compared to the Day-Date 36 "President" at 36mm. Water resistance differs: 30m (3 ATM) vs 100m (10 ATM) when new; have a vintage piece pressure-tested.
Value & Cost of Ownership
Same tier — different value propositions
The Breguet Classique 7137 Power Reserve Moonphase (18k yellow gold) sits at $25,000+ and the Rolex Day-Date 36 "President" at $25,000+. On the specs that outlast any price: the Classique 7137 Power Reserve Moonphase (18k yellow gold) uses Sapphire Crystal, sapphire caseback with About 45 hours, with indicator, against Sapphire Crystal with Cyclops and About 42 hours on the Day-Date 36 "President". Service intervals are typically 5-7 years for both.
Water Resistance
30m (3 ATM) vs 100m (10 ATM) when new; have a vintage piece pressure-tested
The Classique 7137 Power Reserve Moonphase (18k yellow gold) is rated to 30m (3 ATM) while the Day-Date 36 "President" handles 100m (10 ATM) when new; have a vintage piece pressure-tested. The Day-Date 36 "President" offers superior water resistance.
Our Verdict
Breguet
Classique 7137 Power Reserve Moonphase (18k yellow gold)
Choose the Breguet Classique 7137 Power Reserve Moonphase (18k yellow gold) if you prioritize Breguet 502.3 QSE1, automatic, silicon escapement engineering, Swiss Made craftsmanship, and 30m (3 ATM) water resistance. At $25,000+, it delivers Automatic, Breguet Calibre 502.3 QSE1 (ultra-thin, off-centre rotor) with About 45 hours, with indicator power reserve.
Check Price on AmazonRolex
Day-Date 36 "President"
Choose the Rolex Day-Date 36 "President" if you value Rolex In-House Automatic, COSC chronometer technology, Swiss Made heritage, and 36mm proportions. At $25,000+, the Automatic Caliber 3055 with About 42 hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Breguet Classique 7137 Power Reserve Moonphase (18k yellow gold) and Rolex Day-Date 36 "President" represent two distinct approaches to fine watchmaking — the Breguet bringing Swiss Made tradition while Rolex 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.