Updated
Casio Duro MDV106 Black vs Casio MRW-230H
Casio's diver meets Casio's timepiece
Quick Verdict
The Casio Duro MDV106 Black ($50–$100) and Casio MRW-230H (Under $50) are closely matched timepieces at similar price points. The Duro MDV106 Black emphasizes Casio Quartz (Battery) engineering while the MRW-230H focuses on Casio (Japan) craftsmanship.
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Specifications Compared
| Feature | Casio Duro MDV106 Black | Casio MRW-230H |
|---|---|---|
| Price | $50–$100 | Under $50 |
| Case Size | 44mm | 44.6mm (47.9 x 44.6 x 12.3mm) |
| Movement | Quartz Module 2784 | Quartz |
| Caliber Type | Casio Quartz (Battery) | Casio Quartz (Battery) |
| Power Reserve | 3-Year Battery | Approx. 3-year battery (SR626SW) |
| Water Resistance | 200m (20 ATM) Diver | 100m (10 ATM) |
| Crystal | Mineral Glass | Resin Glass |
| Case Material | Stainless Steel | Resin case, aluminum bezel ring |
| Origin | Casio (Japan) | Casio (Japan) |
Category-by-Category Analysis
Design & Aesthetics
Casio's design language vs Casio's approach
The Casio Duro MDV106 Black features a Stainless Steel case at 44mm with Mineral Glass protection. The Casio MRW-230H offers Resin case, aluminum bezel ring construction at 44.6mm (47.9 x 44.6 x 12.3mm) with Resin Glass. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Quartz Module 2784 vs Quartz
The Duro MDV106 Black runs the Quartz Module 2784 (Casio Quartz (Battery), 3-Year Battery power reserve) at standard frequency. The MRW-230H uses the Quartz (Casio Quartz (Battery), Approx. 3-year battery (SR626SW) reserve) at standard. The MRW-230H offers a longer power reserve.
Wearability & Fit
44mm vs 44.6mm (47.9 x 44.6 x 12.3mm) — different wrist presence
At 44mm, the Duro MDV106 Black wears more compactly on smaller wrists compared to the MRW-230H at 44.6mm (47.9 x 44.6 x 12.3mm). Water resistance differs: 200m (20 ATM) Diver vs 100m (10 ATM).
Value & Cost of Ownership
Same tier — different value propositions
The Casio Duro MDV106 Black sits at $50–$100 and the Casio MRW-230H at Under $50. On the specs that outlast any price: the Duro MDV106 Black uses Mineral Glass with 3-Year Battery, against Resin Glass and Approx. 3-year battery (SR626SW) on the MRW-230H. Service intervals are typically 5-7 years for both.
Water Resistance
200m (20 ATM) Diver vs 100m (10 ATM)
The Duro MDV106 Black is rated to 200m (20 ATM) Diver while the MRW-230H handles 100m (10 ATM). The Duro MDV106 Black is better suited for water activities.
Our Verdict
Casio
Duro MDV106 Black
Choose the Casio Duro MDV106 Black 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 AmazonCasio
MRW-230H
Choose the Casio MRW-230H if you value Casio Quartz (Battery) technology, Casio (Japan) heritage, and 44.6mm (47.9 x 44.6 x 12.3mm) proportions. At Under $50, the Quartz with Approx. 3-year battery (SR626SW) power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Casio Duro MDV106 Black and Casio MRW-230H represent two distinct approaches to fine watchmaking — the Casio bringing Casio (Japan) tradition while Casio delivers Casio (Japan) 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.