Head-to-Head Comparison

Casio Duro MDV106 vs Casio Pro Trek PRW3500T-7

Two divers compared — $50–$100 vs $250–$500

Quick Verdict

The Casio Duro MDV106 ($50–$100) offers Casio Quartz (Battery) precision in the tier below the Casio Pro Trek PRW3500T-7 ($250–$500). The Duro MDV106 measures 44mm and is rated 200m (20 ATM) Diver. The Pro Trek PRW3500T-7 counters with Casio (Japan) craftsmanship and 200m (20 ATM) water resistance. Both are exceptional divers for their respective tiers.

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Casio Duro MDV106

Casio

Duro MDV106

$50–$100

Casio Pro Trek PRW3500T-7

Casio

Pro Trek PRW3500T-7

$250–$500

Specifications Compared

FeatureCasio Duro MDV106Casio Pro Trek PRW3500T-7
Price$50–$100$250–$500
Case Size44mm56.9 × 53.4 × 14.8mm
MovementQuartz Module 2784Tough Solar (Solar Quartz), Radio-Controlled
Caliber TypeCasio Quartz (Battery)Tough Solar Quartz, Multi-Band 6
Power Reserve3-Year BatteryTough Solar (Rechargeable)
Water Resistance200m (20 ATM) Diver200m (20 ATM)
CrystalMineral GlassMineral Glass
Case MaterialStainless 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 Duro MDV106 features a Stainless Steel case at 44mm 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

Quartz Module 2784 vs Tough Solar (Solar Quartz), Radio-Controlled

The Duro MDV106 runs the Quartz Module 2784 (Casio Quartz (Battery), 3-Year Battery 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 Duro MDV106 edges ahead on power reserve.

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Wearability & Fit

Edge: Casio

44mm vs 56.9 × 53.4 × 14.8mm — different wrist presence

At 44mm, the Duro MDV106 wears more compactly on smaller wrists compared to the Pro Trek PRW3500T-7 at 56.9 × 53.4 × 14.8mm. Water resistance differs: 200m (20 ATM) Diver vs 200m (20 ATM).

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Value & Cost of Ownership

Edge: Casio

Casio sits in the lower tier

The Casio Duro MDV106 sits at $50–$100 and the Casio Pro Trek PRW3500T-7 at $250–$500. On the specs that outlast any price: the Duro MDV106 uses Mineral Glass with 3-Year Battery, 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: Draw

200m (20 ATM) Diver vs 200m (20 ATM)

The Duro MDV106 is rated to 200m (20 ATM) Diver while the Pro Trek PRW3500T-7 handles 200m (20 ATM). Both offer identical water resistance ratings.

Our Verdict

Casio

Duro MDV106

Choose the Casio Duro MDV106 if you prioritize Casio Quartz (Battery) engineering, Casio (Japan) craftsmanship, and 200m (20 ATM) Diver water resistance. At $50–$100, it delivers Quartz Module 2784 with 3-Year Battery 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 Duro MDV106 and Casio Pro Trek PRW3500T-7 represent two distinct approaches to the diver category — 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 Duro MDV106 ($50–$100) offers Quartz Module 2784 with 3-Year Battery 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.
The Casio Duro MDV106 offers better upfront value, sitting a tier lower at $50–$100. However, the Casio Pro Trek PRW3500T-7 may justify its premium with superior finishing, heritage, or resale value.
Both are suitable for daily wear. The Duro MDV106 at 44mm with 200m (20 ATM) Diver 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.