Casio Pro Trek PRG601-1 vs Frederique Constant Classic Quartz Moonphase
Casio's timepiece meets Frederique Constant's dress watch
Quick Verdict
The Casio Pro Trek PRG601-1 ($250–$500) offers Tough Solar Quartz (No Battery Change) precision in the tier below the Frederique Constant Classic Quartz Moonphase ($1,000–$1,500). The Pro Trek PRG601-1 measures 51.6mm and is rated 100m (10 ATM). The Classic Quartz Moonphase counters with Swiss Made craftsmanship and 50m (5 ATM) water resistance. Both are exceptional watches for their respective tiers.
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Specifications Compared
| Feature | Casio Pro Trek PRG601-1 | Frederique Constant Classic Quartz Moonphase |
|---|---|---|
| Price | $250–$500 | $1,000–$1,500 |
| Case Size | 51.6mm | 40mm |
| Movement | Tough Solar (Solar Quartz) | Quartz FC-206 |
| Caliber Type | Tough Solar Quartz (No Battery Change) | Swiss Quartz |
| Power Reserve | 7 Months (Solar, Full Charge); 25 Months Power Save | Battery |
| Water Resistance | 100m (10 ATM) | 50m (5 ATM) |
| Crystal | Mineral Glass | Anti-Reflective Sapphire Crystal |
| Case Material | Bio-Based Resin / Stainless Steel | Stainless Steel |
| Origin | Casio (Japan) | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Casio's design language vs Frederique Constant's approach
The Casio Pro Trek PRG601-1 features a Bio-Based Resin / Stainless Steel case at 51.6mm with Mineral Glass protection. The Frederique Constant Classic Quartz Moonphase offers Stainless Steel construction at 40mm with Anti-Reflective Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Tough Solar (Solar Quartz) vs Quartz FC-206
The Pro Trek PRG601-1 runs the Tough Solar (Solar Quartz) (Tough Solar Quartz (No Battery Change), 7 Months (Solar, Full Charge); 25 Months Power Save power reserve) at standard frequency. The Classic Quartz Moonphase uses the Quartz FC-206 (Swiss Quartz, Battery reserve) at standard. The Pro Trek PRG601-1 edges ahead on power reserve.
Wearability & Fit
51.6mm vs 40mm — different wrist presence
At 51.6mm, the Pro Trek PRG601-1 has a bolder wrist presence compared to the Classic Quartz Moonphase at 40mm. Water resistance differs: 100m (10 ATM) vs 50m (5 ATM).
Value & Cost of Ownership
Casio sits in the lower tier
The Casio Pro Trek PRG601-1 sits at $250–$500 and the Frederique Constant Classic Quartz Moonphase at $1,000–$1,500. On the specs that outlast any price: the Pro Trek PRG601-1 uses Mineral Glass with 7 Months (Solar, Full Charge); 25 Months Power Save, against Anti-Reflective Sapphire Crystal and Battery on the Classic Quartz Moonphase. Service intervals are typically 5-7 years for both.
Water Resistance
100m (10 ATM) vs 50m (5 ATM)
The Pro Trek PRG601-1 is rated to 100m (10 ATM) while the Classic Quartz Moonphase handles 50m (5 ATM). The Pro Trek PRG601-1 is better suited for water activities.
Our Verdict
Casio
Pro Trek PRG601-1
Choose the Casio Pro Trek PRG601-1 if you prioritize Tough Solar Quartz (No Battery Change) engineering, Casio (Japan) craftsmanship, and 100m (10 ATM) water resistance. At $250–$500, it delivers Tough Solar (Solar Quartz) with 7 Months (Solar, Full Charge); 25 Months Power Save power reserve.
Check Price on AmazonFrederique Constant
Classic Quartz Moonphase
Choose the Frederique Constant Classic Quartz Moonphase if you value Swiss Quartz technology, Swiss Made heritage, and 40mm proportions. At $1,000–$1,500, the Quartz FC-206 with Battery power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Casio Pro Trek PRG601-1 and Frederique Constant Classic Quartz Moonphase represent two distinct approaches to fine watchmaking — the Casio bringing Casio (Japan) tradition while Frederique Constant 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.