Head-to-Head Comparison

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.

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Casio Pro Trek PRW3500T-7

Casio

Pro Trek PRW3500T-7

$250–$500

Raymond Weil Freelancer Open Heart

Raymond Weil

Freelancer Open Heart

$1,500–$2,500

Specifications Compared

FeatureCasio Pro Trek PRW3500T-7Raymond Weil Freelancer Open Heart
Price$250–$500$1,500–$2,500
Case Size56.9 × 53.4 × 14.8mm42mm
MovementTough Solar (Solar Quartz), Radio-ControlledAutomatic Caliber RW4200
Caliber TypeTough Solar Quartz, Multi-Band 6Automatic (Sellita SW200 base)
Power ReserveTough Solar (Rechargeable)38 Hours
Water Resistance200m (20 ATM)100m (10 ATM)
CrystalMineral GlassSapphire with Antiglare
Case MaterialResin / Stainless Steel, Titanium BraceletStainless Steel
OriginCasio (Japan)Swiss Made

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

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

Edge: Raymond Weil

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.

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Wearability & Fit

Edge: Raymond Weil

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).

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Value & Cost of Ownership

Edge: Casio

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.

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Water Resistance

Edge: Casio

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.

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Raymond 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.

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The 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

Neither is objectively better — they serve different preferences. The Casio Pro Trek PRW3500T-7 ($250–$500) offers Tough Solar (Solar Quartz), Radio-Controlled with Tough Solar (Rechargeable) power reserve, while the Raymond Weil Freelancer Open Heart ($1,500–$2,500) features Automatic Caliber RW4200 with 100m (10 ATM) water resistance. Choose based on your priorities: Casio (Japan) craftsmanship vs Swiss Made engineering.
The Casio Pro Trek PRW3500T-7 offers better upfront value, sitting a tier lower at $250–$500. However, the Raymond Weil Freelancer Open Heart may justify its premium with superior finishing, heritage, or resale value.
Both are suitable for daily wear. The Pro Trek PRW3500T-7 at 56.9 × 53.4 × 14.8mm with 200m (20 ATM) water resistance handles everyday situations. The Freelancer Open Heart at 42mm with 100m (10 ATM) is similarly capable. The Pro Trek PRW3500T-7 uses Mineral Glass while the Freelancer Open Heart uses Sapphire with Antiglare. Sapphire resists scratches noticeably better than mineral glass.

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.