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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Specifications Compared
| Feature | Casio Duro MDV106 | Invicta Pro Diver Automatic 23681 |
|---|---|---|
| Price | $50–$100 | $50–$100 |
| Case Size | 44mm | 40mm |
| Movement | Quartz Module 2784 | Automatic NH35A |
| Caliber Type | Casio Quartz (Battery) | Automatic (Seiko NH35A) |
| Power Reserve | 3-Year Battery | — |
| Water Resistance | 200m (20 ATM) Diver | 200m |
| Crystal | Mineral Glass | Mineral Glass |
| Case Material | Stainless Steel | — |
| Origin | Casio (Japan) | Invicta (Japanese movement) |
Category-by-Category Analysis
Design & Aesthetics
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.
Movement & Performance
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
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.
Value & Cost of Ownership
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.
Water Resistance
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.
Check Price on AmazonInvicta
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.
Check Price on AmazonThe 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
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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.

