Head-to-Head Comparison

Casio Duro MDV106 vs Casio Pro Trek PRG601-1

Casio's diver meets Casio's timepiece

Quick Verdict

The Casio Duro MDV106 ($50–$100) offers Casio Quartz (Battery) precision in the tier below the Casio Pro Trek PRG601-1 ($250–$500). The Duro MDV106 measures 44mm and is rated 200m (20 ATM) Diver. The Pro Trek PRG601-1 counters with Casio (Japan) craftsmanship and 100m (10 ATM) water resistance. Both are exceptional watches for their respective tiers.

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Casio Duro MDV106

Casio

Duro MDV106

$50–$100

Casio Pro Trek PRG601-1

Casio

Pro Trek PRG601-1

$250–$500

Specifications Compared

FeatureCasio Duro MDV106Casio Pro Trek PRG601-1
Price$50–$100$250–$500
Case Size44mm51.6mm
MovementQuartz Module 2784Tough Solar (Solar Quartz)
Caliber TypeCasio Quartz (Battery)Tough Solar Quartz (No Battery Change)
Power Reserve3-Year Battery7 Months (Solar, Full Charge); 25 Months Power Save
Water Resistance200m (20 ATM) Diver100m (10 ATM)
CrystalMineral GlassMineral Glass
Case MaterialStainless SteelBio-Based Resin / Stainless Steel
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 PRG601-1 offers Bio-Based Resin / Stainless Steel construction at 51.6mm 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)

The Duro MDV106 runs the Quartz Module 2784 (Casio Quartz (Battery), 3-Year Battery power reserve) at standard frequency. The Pro Trek PRG601-1 uses the Tough Solar (Solar Quartz) (Tough Solar Quartz (No Battery Change), 7 Months (Solar, Full Charge); 25 Months Power Save reserve) at standard. The Pro Trek PRG601-1 offers a longer power reserve.

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Wearability & Fit

Edge: Casio

44mm vs 51.6mm — different wrist presence

At 44mm, the Duro MDV106 wears more compactly on smaller wrists compared to the Pro Trek PRG601-1 at 51.6mm. Water resistance differs: 200m (20 ATM) Diver vs 100m (10 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 PRG601-1 at $250–$500. On the specs that outlast any price: the Duro MDV106 uses Mineral Glass with 3-Year Battery, against Mineral Glass and 7 Months (Solar, Full Charge); 25 Months Power Save on the Pro Trek PRG601-1. Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Casio

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

The Duro MDV106 is rated to 200m (20 ATM) Diver while the Pro Trek PRG601-1 handles 100m (10 ATM). The Duro MDV106 is better suited for water activities.

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 PRG601-1

Choose the Casio Pro Trek PRG601-1 if you value Tough Solar Quartz (No Battery Change) technology, Casio (Japan) heritage, and 51.6mm proportions. At $250–$500, the Tough Solar (Solar Quartz) with 7 Months (Solar, Full Charge); 25 Months Power Save power reserve makes it a compelling choice.

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The Bottom Line

The Casio Duro MDV106 and Casio Pro Trek PRG601-1 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 Duro MDV106 ($50–$100) offers Quartz Module 2784 with 3-Year Battery power reserve, while the Casio Pro Trek PRG601-1 ($250–$500) features Tough Solar (Solar Quartz) with 100m (10 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 PRG601-1 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 PRG601-1 at 51.6mm with 100m (10 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.