Updated
Casio Duro MDV106 Black vs Citizen Promaster Skyhawk A-T
Casio's diver meets Citizen's chronograph
Quick Verdict
The Casio Duro MDV106 Black ($50–$100) offers Casio Quartz (Battery) precision in the tier below the Citizen Promaster Skyhawk A-T ($500–$1,000). The Duro MDV106 Black measures 44mm and is rated 200m (20 ATM) Diver. The Promaster Skyhawk A-T counters with Made in Japan craftsmanship and 200m (20 ATM) water resistance. Both are exceptional watches for their respective tiers.
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Specifications Compared
| Feature | Casio Duro MDV106 Black | Citizen Promaster Skyhawk A-T |
|---|---|---|
| Price | $50–$100 | $500–$1,000 |
| Case Size | 44mm | 45mm |
| Movement | Quartz Module 2784 | Eco-Drive (Radio-Controlled, Atomic Timekeeping) |
| Caliber Type | Casio Quartz (Battery) | Citizen Eco-Drive U680 (Solar + Radio-Controlled) |
| Power Reserve | 3-Year Battery | — |
| Water Resistance | 200m (20 ATM) Diver | 200m (20 ATM) |
| Crystal | Mineral Glass | Sapphire Crystal |
| Case Material | Stainless Steel | Stainless Steel (Black Ion-Plated) |
| Origin | Casio (Japan) | Made in Japan |
Category-by-Category Analysis
Design & Aesthetics
Casio's design language vs Citizen's approach
The Casio Duro MDV106 Black features a Stainless Steel case at 44mm with Mineral Glass protection. The Citizen Promaster Skyhawk A-T offers Stainless Steel (Black Ion-Plated) construction at 45mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Quartz Module 2784 vs Eco-Drive (Radio-Controlled, Atomic Timekeeping)
The Duro MDV106 Black runs the Quartz Module 2784 (Casio Quartz (Battery), 3-Year Battery power reserve) at standard frequency. The Promaster Skyhawk A-T uses the Eco-Drive (Radio-Controlled, Atomic Timekeeping) (Citizen Eco-Drive U680 (Solar + Radio-Controlled), standard reserve) at standard. The Duro MDV106 Black edges ahead on power reserve.
Wearability & Fit
44mm vs 45mm — different wrist presence
At 44mm, the Duro MDV106 Black wears more compactly on smaller wrists compared to the Promaster Skyhawk A-T at 45mm. Water resistance differs: 200m (20 ATM) Diver vs 200m (20 ATM).
Value & Cost of Ownership
Casio sits in the lower tier
The Casio Duro MDV106 Black sits at $50–$100 and the Citizen Promaster Skyhawk A-T at $500–$1,000. On the specs that outlast any price: the Duro MDV106 Black uses Mineral Glass with 3-Year Battery, against Sapphire Crystal and a standard reserve on the Promaster Skyhawk A-T. Service intervals are typically 5-7 years for both.
Water Resistance
200m (20 ATM) Diver vs 200m (20 ATM)
The Duro MDV106 Black is rated to 200m (20 ATM) Diver while the Promaster Skyhawk A-T handles 200m (20 ATM). Both offer identical water resistance ratings.
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 AmazonCitizen
Promaster Skyhawk A-T
Choose the Citizen Promaster Skyhawk A-T if you value Citizen Eco-Drive U680 (Solar + Radio-Controlled) technology, Made in Japan heritage, and 45mm proportions. At $500–$1,000, the Eco-Drive (Radio-Controlled, Atomic Timekeeping) with ample power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Casio Duro MDV106 Black and Citizen Promaster Skyhawk A-T represent two distinct approaches to fine watchmaking — the Casio bringing Casio (Japan) tradition while Citizen delivers Made in Japan engineering.
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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.