Head-to-Head Comparison

Casio Pro Trek PRG601-1 vs Casio Pro Trek PRW3500T-7

Casio's timepiece meets Casio's diver

Quick Verdict

The Casio Pro Trek PRG601-1 ($250–$500) and Casio Pro Trek PRW3500T-7 ($250–$500) are closely matched timepieces at similar price points. The Pro Trek PRG601-1 emphasizes Tough Solar Quartz (No Battery Change) engineering while the Pro Trek PRW3500T-7 focuses on Casio (Japan) craftsmanship.

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Casio Pro Trek PRG601-1

Casio

Pro Trek PRG601-1

$250–$500

Casio Pro Trek PRW3500T-7

Casio

Pro Trek PRW3500T-7

$250–$500

Specifications Compared

FeatureCasio Pro Trek PRG601-1Casio Pro Trek PRW3500T-7
Price$250–$500$250–$500
Case Size51.6mm56.9 × 53.4 × 14.8mm
MovementTough Solar (Solar Quartz)Tough Solar (Solar Quartz), Radio-Controlled
Caliber TypeTough Solar Quartz (No Battery Change)Tough Solar Quartz, Multi-Band 6
Power Reserve7 Months (Solar, Full Charge); 25 Months Power SaveTough Solar (Rechargeable)
Water Resistance100m (10 ATM)200m (20 ATM)
CrystalMineral GlassMineral Glass
Case MaterialBio-Based Resin / Stainless SteelResin / Stainless Steel, Titanium Bracelet
OriginCasio (Japan)Casio (Japan)

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

Casio's design language vs Casio's approach

The Casio Pro Trek PRG601-1 features a Bio-Based Resin / Stainless Steel case at 51.6mm with Mineral Glass protection. The Casio Pro Trek PRW3500T-7 offers Resin / Stainless Steel, Titanium Bracelet construction at 56.9 × 53.4 × 14.8mm with Mineral Glass. Both represent their brand's distinct design philosophy and heritage.

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Movement & Performance

Edge: Casio

Tough Solar (Solar Quartz) vs Tough Solar (Solar Quartz), Radio-Controlled

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 Pro Trek PRW3500T-7 uses the Tough Solar (Solar Quartz), Radio-Controlled (Tough Solar Quartz, Multi-Band 6, Tough Solar (Rechargeable) reserve) at standard. The Pro Trek PRG601-1 edges ahead on power reserve.

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Wearability & Fit

Edge: Casio

51.6mm vs 56.9 × 53.4 × 14.8mm — different wrist presence

At 51.6mm, the Pro Trek PRG601-1 wears more compactly on smaller wrists compared to the Pro Trek PRW3500T-7 at 56.9 × 53.4 × 14.8mm. Water resistance differs: 100m (10 ATM) vs 200m (20 ATM).

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Value & Cost of Ownership

Edge: Draw

Same tier — different value propositions

The Casio Pro Trek PRG601-1 sits at $250–$500 and the Casio Pro Trek PRW3500T-7 at $250–$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 Mineral Glass and Tough Solar (Rechargeable) on the Pro Trek PRW3500T-7. Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Casio

100m (10 ATM) vs 200m (20 ATM)

The Pro Trek PRG601-1 is rated to 100m (10 ATM) while the Pro Trek PRW3500T-7 handles 200m (20 ATM). The Pro Trek PRW3500T-7 offers superior water resistance.

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.

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Casio

Pro Trek PRW3500T-7

Choose the Casio Pro Trek PRW3500T-7 if you value Tough Solar Quartz, Multi-Band 6 technology, Casio (Japan) heritage, and 56.9 × 53.4 × 14.8mm proportions. At $250–$500, the Tough Solar (Solar Quartz), Radio-Controlled with Tough Solar (Rechargeable) power reserve makes it a compelling choice.

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The Bottom Line

The Casio Pro Trek PRG601-1 and Casio Pro Trek PRW3500T-7 represent two distinct approaches to fine watchmaking — the Casio bringing Casio (Japan) tradition while Casio delivers Casio (Japan) engineering.

Frequently Asked Questions

Neither is objectively better — they serve different preferences. The Casio Pro Trek PRG601-1 ($250–$500) offers Tough Solar (Solar Quartz) with 7 Months (Solar, Full Charge); 25 Months Power Save power reserve, while the Casio Pro Trek PRW3500T-7 ($250–$500) features Tough Solar (Solar Quartz), Radio-Controlled with 200m (20 ATM) water resistance. Choose based on your priorities: Casio (Japan) craftsmanship vs Casio (Japan) engineering.
Both are priced similarly, making this a question of preference rather than value. The Pro Trek PRG601-1 emphasizes Tough Solar Quartz (No Battery Change) technology while the Pro Trek PRW3500T-7 prioritizes Tough Solar Quartz, Multi-Band 6 precision.
Both are suitable for daily wear. The Pro Trek PRG601-1 at 51.6mm with 100m (10 ATM) water resistance handles everyday situations. The Pro Trek PRW3500T-7 at 56.9 × 53.4 × 14.8mm with 200m (20 ATM) is similarly capable. Both use 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.