Casio Pro Trek PRW3500T-7 vs Raymond Weil Freelancer Open Heart
Casio's diver meets Raymond Weil'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 Raymond Weil Freelancer Open Heart ($1,500–$2,500). The Pro Trek PRW3500T-7 measures 56.9 × 53.4 × 14.8mm and is rated 200m (20 ATM). The Freelancer Open Heart counters with Swiss Made craftsmanship and 100m (10 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 | Raymond Weil Freelancer Open Heart |
|---|---|---|
| Price | $250–$500 | $1,500–$2,500 |
| Case Size | 56.9 × 53.4 × 14.8mm | 42mm |
| Movement | Tough Solar (Solar Quartz), Radio-Controlled | Automatic Caliber RW4200 |
| Caliber Type | Tough Solar Quartz, Multi-Band 6 | Automatic (Sellita SW200 base) |
| Power Reserve | Tough Solar (Rechargeable) | 38 Hours |
| Water Resistance | 200m (20 ATM) | 100m (10 ATM) |
| Crystal | Mineral Glass | Sapphire with Antiglare |
| 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 Raymond Weil'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 Raymond Weil Freelancer Open Heart offers Stainless Steel construction at 42mm with Sapphire with Antiglare. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Tough Solar (Solar Quartz), Radio-Controlled vs Automatic Caliber RW4200
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 Freelancer Open Heart uses the Automatic Caliber RW4200 (Automatic (Sellita SW200 base), 38 Hours reserve) at 28,800 vph (4 Hz). The Freelancer Open Heart offers a longer power reserve.
Wearability & Fit
56.9 × 53.4 × 14.8mm vs 42mm — different wrist presence
At 56.9 × 53.4 × 14.8mm, the Pro Trek PRW3500T-7 has a bolder wrist presence compared to the Freelancer Open Heart at 42mm. Water resistance differs: 200m (20 ATM) vs 100m (10 ATM).
Value & Cost of Ownership
Casio sits in the lower tier
The Casio Pro Trek PRW3500T-7 sits at $250–$500 and the Raymond Weil Freelancer Open Heart 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 Sapphire with Antiglare and 38 Hours on the Freelancer Open Heart. Service intervals are typically 5-7 years for both.
Water Resistance
200m (20 ATM) vs 100m (10 ATM)
The Pro Trek PRW3500T-7 is rated to 200m (20 ATM) while the Freelancer Open Heart handles 100m (10 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 AmazonRaymond Weil
Freelancer Open Heart
Choose the Raymond Weil Freelancer Open Heart if you value Automatic (Sellita SW200 base) technology, Swiss Made heritage, and 42mm proportions. At $1,500–$2,500, the Automatic Caliber RW4200 with 38 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Casio Pro Trek PRW3500T-7 and Raymond Weil Freelancer Open Heart represent two distinct approaches to fine watchmaking — the Casio bringing Casio (Japan) tradition while Raymond Weil 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 Raymond Weil Freelancer Open Heart
Tag Heuer's chronograph meets Raymond Weil'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.

