Casio Pro Trek PRW3500T-7 vs Frederique Constant Highlife Automatic COSC
Casio's diver meets Frederique Constant's timepiece
Quick Verdict
The Casio Pro Trek PRW3500T-7 ($250–$500) offers Tough Solar Quartz, Multi-Band 6 precision in the tier below the Frederique Constant Highlife Automatic COSC ($1,500–$2,500). The Pro Trek PRW3500T-7 measures 56.9 × 53.4 × 14.8mm and is rated 200m (20 ATM). The Highlife Automatic COSC counters with Swiss Made craftsmanship and 50m (5 ATM) water resistance. Both are exceptional watches for their respective tiers.
Transparency — We earn a small commission on purchases made through our Amazon links. This doesn't affect our editorial independence.
Specifications Compared
| Feature | Casio Pro Trek PRW3500T-7 | Frederique Constant Highlife Automatic COSC |
|---|---|---|
| Price | $250–$500 | $1,500–$2,500 |
| Case Size | 56.9 × 53.4 × 14.8mm | 41mm |
| Movement | Tough Solar (Solar Quartz), Radio-Controlled | Automatic FC-303 (COSC) |
| Caliber Type | Tough Solar Quartz, Multi-Band 6 | COSC-Certified Automatic |
| Power Reserve | Tough Solar (Rechargeable) | 38 Hours |
| Water Resistance | 200m (20 ATM) | 50m (5 ATM) |
| Crystal | Mineral Glass | Convex Sapphire |
| Case Material | Resin / Stainless Steel, Titanium Bracelet | 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 PRW3500T-7 features a Resin / Stainless Steel, Titanium Bracelet case at 56.9 × 53.4 × 14.8mm with Mineral Glass protection. The Frederique Constant Highlife Automatic COSC offers Stainless Steel construction at 41mm with Convex Sapphire. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Tough Solar (Solar Quartz), Radio-Controlled vs Automatic FC-303 (COSC)
The Pro Trek PRW3500T-7 runs the Tough Solar (Solar Quartz), Radio-Controlled (Tough Solar Quartz, Multi-Band 6, Tough Solar (Rechargeable) power reserve) at standard frequency. The Highlife Automatic COSC uses the Automatic FC-303 (COSC) (COSC-Certified Automatic, 38 Hours reserve) at 28,800 vph (4 Hz). The Highlife Automatic COSC offers a longer power reserve.
Wearability & Fit
56.9 × 53.4 × 14.8mm vs 41mm — different wrist presence
At 56.9 × 53.4 × 14.8mm, the Pro Trek PRW3500T-7 has a bolder wrist presence compared to the Highlife Automatic COSC at 41mm. Water resistance differs: 200m (20 ATM) vs 50m (5 ATM).
Value & Cost of Ownership
Casio sits in the lower tier
The Casio Pro Trek PRW3500T-7 sits at $250–$500 and the Frederique Constant Highlife Automatic COSC at $1,500–$2,500. On the specs that outlast any price: the Pro Trek PRW3500T-7 uses Mineral Glass with Tough Solar (Rechargeable), against Convex Sapphire and 38 Hours on the Highlife Automatic COSC. Service intervals are typically 5-7 years for both.
Water Resistance
200m (20 ATM) vs 50m (5 ATM)
The Pro Trek PRW3500T-7 is rated to 200m (20 ATM) while the Highlife Automatic COSC handles 50m (5 ATM). The Pro Trek PRW3500T-7 is better suited for water activities.
Our Verdict
Casio
Pro Trek PRW3500T-7
Choose the Casio Pro Trek PRW3500T-7 if you prioritize Tough Solar Quartz, Multi-Band 6 engineering, Casio (Japan) craftsmanship, and 200m (20 ATM) water resistance. At $250–$500, it delivers Tough Solar (Solar Quartz), Radio-Controlled with Tough Solar (Rechargeable) power reserve.
Check Price on AmazonFrederique Constant
Highlife Automatic COSC
Choose the Frederique Constant Highlife Automatic COSC if you value COSC-Certified Automatic technology, Swiss Made heritage, and 41mm proportions. At $1,500–$2,500, the Automatic FC-303 (COSC) with 38 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Casio Pro Trek PRW3500T-7 and Frederique Constant Highlife Automatic COSC represent two distinct approaches to fine watchmaking — the Casio bringing Casio (Japan) tradition while Frederique Constant delivers Swiss Made engineering.
Frequently Asked Questions
More Comparisons
Tag Heuer Carrera Chronograph vs Casio Pro Trek PRW3500T-7
Tag Heuer's chronograph meets Casio's diver
Tag Heuer Carrera Chronograph vs Frederique Constant Highlife Automatic COSC
Tag Heuer's chronograph meets Frederique Constant's timepiece
Tissot PRX Powermatic 80 vs Casio Pro Trek PRW3500T-7
Tissot's timepiece meets Casio's diver
Explore These Watches
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.