Frederique Constant Classic Quartz Moonphase vs Longines HydroConquest Automatic
Frederique Constant's dress watch meets Longines's diver
Quick Verdict
The Frederique Constant Classic Quartz Moonphase ($1,000–$1,500) offers Swiss Quartz precision in the tier below the Longines HydroConquest Automatic ($1,500–$2,500). The Classic Quartz Moonphase measures 40mm and is rated 50m (5 ATM). The HydroConquest Automatic counters with Swiss Made craftsmanship and 300m (30 ATM) water resistance. Both are exceptional watches for their respective tiers.
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Specifications Compared
| Feature | Frederique Constant Classic Quartz Moonphase | Longines HydroConquest Automatic |
|---|---|---|
| Price | $1,000–$1,500 | $1,500–$2,500 |
| Case Size | 40mm | 41mm |
| Movement | Quartz FC-206 | Automatic L888.5 |
| Caliber Type | Swiss Quartz | ETA-Based Automatic with Silicon Balance Spring |
| Power Reserve | Battery | 72 Hours |
| Water Resistance | 50m (5 ATM) | 300m (30 ATM) |
| Crystal | Anti-Reflective Sapphire Crystal | Sapphire with Anti-Reflective Coating |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Swiss Made | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Frederique Constant's design language vs Longines's approach
The Frederique Constant Classic Quartz Moonphase features a Stainless Steel case at 40mm with Anti-Reflective Sapphire Crystal protection. The Longines HydroConquest Automatic offers Stainless Steel construction at 41mm with Sapphire with Anti-Reflective Coating. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Quartz FC-206 vs Automatic L888.5
The Classic Quartz Moonphase runs the Quartz FC-206 (Swiss Quartz, Battery power reserve) at standard frequency. The HydroConquest Automatic uses the Automatic L888.5 (ETA-Based Automatic with Silicon Balance Spring, 72 Hours reserve) at 25,200 vph (3.5 Hz). The HydroConquest Automatic offers a longer power reserve.
Wearability & Fit
40mm vs 41mm — different wrist presence
At 40mm, the Classic Quartz Moonphase wears more compactly on smaller wrists compared to the HydroConquest Automatic at 41mm. Water resistance differs: 50m (5 ATM) vs 300m (30 ATM).
Value & Cost of Ownership
Frederique Constant sits in the lower tier
The Frederique Constant Classic Quartz Moonphase sits at $1,000–$1,500 and the Longines HydroConquest Automatic at $1,500–$2,500. On the specs that outlast any price: the Classic Quartz Moonphase uses Anti-Reflective Sapphire Crystal with Battery, against Sapphire with Anti-Reflective Coating and 72 Hours on the HydroConquest Automatic. Service intervals are typically 5-7 years for both.
Water Resistance
50m (5 ATM) vs 300m (30 ATM)
The Classic Quartz Moonphase is rated to 50m (5 ATM) while the HydroConquest Automatic handles 300m (30 ATM). The HydroConquest Automatic offers superior water resistance.
Our Verdict
Frederique Constant
Classic Quartz Moonphase
Choose the Frederique Constant Classic Quartz Moonphase if you prioritize Swiss Quartz engineering, Swiss Made craftsmanship, and 50m (5 ATM) water resistance. At $1,000–$1,500, it delivers Quartz FC-206 with Battery power reserve.
Check Price on AmazonLongines
HydroConquest Automatic
Choose the Longines HydroConquest Automatic if you value ETA-Based Automatic with Silicon Balance Spring technology, Swiss Made heritage, and 41mm proportions. At $1,500–$2,500, the Automatic L888.5 with 72 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Frederique Constant Classic Quartz Moonphase and Longines HydroConquest Automatic represent two distinct approaches to fine watchmaking — the Frederique Constant bringing Swiss Made tradition while Longines 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.