Head-to-Head Comparison

Casio Duro MDV106 vs Invicta Pro Diver Automatic 23681

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

Quick Verdict

The Casio Duro MDV106 ($50–$100) and Invicta Pro Diver Automatic 23681 ($50–$100) are closely matched divers at similar price points. The Duro MDV106 emphasizes Casio Quartz (Battery) engineering while the Pro Diver Automatic 23681 focuses on Invicta (Japanese movement) craftsmanship.

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Casio Duro MDV106

Casio

Duro MDV106

$50–$100

Invicta Pro Diver Automatic 23681

Invicta

Pro Diver Automatic 23681

$50–$100

Specifications Compared

FeatureCasio Duro MDV106Invicta Pro Diver Automatic 23681
Price$50–$100$50–$100
Case Size44mm40mm
MovementQuartz Module 2784Automatic NH35A
Caliber TypeCasio Quartz (Battery)Automatic (Seiko NH35A)
Power Reserve3-Year Battery
Water Resistance200m (20 ATM) Diver200m
CrystalMineral GlassMineral Glass
Case MaterialStainless Steel
OriginCasio (Japan)Invicta (Japanese movement)

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

Casio's design language vs Invicta's approach

The Casio Duro MDV106 features a Stainless Steel case at 44mm with Mineral Glass protection. The Invicta Pro Diver Automatic 23681 offers steel construction at 40mm 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 Automatic NH35A

The Duro MDV106 runs the Quartz Module 2784 (Casio Quartz (Battery), 3-Year Battery power reserve) at standard frequency. The Pro Diver Automatic 23681 uses the Automatic NH35A (Automatic (Seiko NH35A), standard reserve) at standard. The Duro MDV106 edges ahead on power reserve.

📏

Wearability & Fit

Edge: Invicta

44mm vs 40mm — different wrist presence

At 44mm, the Duro MDV106 has a bolder wrist presence compared to the Pro Diver Automatic 23681 at 40mm. Water resistance differs: 200m (20 ATM) Diver vs 200m.

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Value & Cost of Ownership

Edge: Draw

Same tier — different value propositions

The Casio Duro MDV106 sits at $50–$100 and the Invicta Pro Diver Automatic 23681 at $50–$100. On the specs that outlast any price: the Duro MDV106 uses Mineral Glass with 3-Year Battery, against Mineral Glass and a standard reserve on the Pro Diver Automatic 23681. Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Draw

200m (20 ATM) Diver vs 200m

The Duro MDV106 is rated to 200m (20 ATM) Diver while the Pro Diver Automatic 23681 handles 200m. 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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Invicta

Pro Diver Automatic 23681

Choose the Invicta Pro Diver Automatic 23681 if you value Automatic (Seiko NH35A) technology, Invicta (Japanese movement) heritage, and 40mm proportions. At $50–$100, the Automatic NH35A with ample power reserve makes it a compelling choice.

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The Bottom Line

The Casio Duro MDV106 and Invicta Pro Diver Automatic 23681 represent two distinct approaches to the diver category — the Casio bringing Casio (Japan) tradition while Invicta delivers Invicta (Japanese movement) 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 Invicta Pro Diver Automatic 23681 ($50–$100) features Automatic NH35A with 200m water resistance. Choose based on your priorities: Casio (Japan) craftsmanship vs Invicta (Japanese movement) engineering.
Both are priced similarly, making this a question of preference rather than value. The Duro MDV106 emphasizes Casio Quartz (Battery) technology while the Pro Diver Automatic 23681 prioritizes Automatic (Seiko NH35A) precision.
Both are suitable for daily wear. The Duro MDV106 at 44mm with 200m (20 ATM) Diver water resistance handles everyday situations. The Pro Diver Automatic 23681 at 40mm with 200m 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.