Casio Duro MDV106 vs Mido Ocean Star GMT
Two divers compared — $50–$100 vs $1,000–$1,500
Quick Verdict
The Casio Duro MDV106 ($50–$100) offers Casio Quartz (Battery) precision in the tier below the Mido Ocean Star GMT ($1,000–$1,500). The Duro MDV106 measures 44mm and is rated 200m (20 ATM) Diver. The Ocean Star GMT counters with Swiss Made craftsmanship and 200m (20 ATM) water resistance. Both are exceptional divers for their respective tiers.
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Specifications Compared
| Feature | Casio Duro MDV106 | Mido Ocean Star GMT |
|---|---|---|
| Price | $50–$100 | $1,000–$1,500 |
| Case Size | 44mm | 44mm |
| Movement | Quartz Module 2784 | Automatic Caliber 80 (Base ETA C07.661) |
| Caliber Type | Casio Quartz (Battery) | Automatic (ETA C07.661 base) |
| Power Reserve | 3-Year Battery | 80 Hours |
| Water Resistance | 200m (20 ATM) Diver | 200m (20 ATM) |
| Crystal | Mineral Glass | Sapphire with Double-sided AR |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Casio (Japan) | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Casio's design language vs Mido's approach
The Casio Duro MDV106 features a Stainless Steel case at 44mm with Mineral Glass protection. The Mido Ocean Star GMT offers Stainless Steel construction at 44mm with Sapphire with Double-sided AR. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Quartz Module 2784 vs Automatic Caliber 80 (Base ETA C07.661)
The Duro MDV106 runs the Quartz Module 2784 (Casio Quartz (Battery), 3-Year Battery power reserve) at standard frequency. The Ocean Star GMT uses the Automatic Caliber 80 (Base ETA C07.661) (Automatic (ETA C07.661 base), 80 Hours reserve) at 21,600 vph (3 Hz). The Ocean Star GMT offers a longer power reserve.
Wearability & Fit
44mm vs 44mm — different wrist presence
At 44mm, the Duro MDV106 is similarly sized compared to the Ocean Star GMT at 44mm. 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 sits at $50–$100 and the Mido Ocean Star GMT at $1,000–$1,500. On the specs that outlast any price: the Duro MDV106 uses Mineral Glass with 3-Year Battery, against Sapphire with Double-sided AR and 80 Hours on the Ocean Star GMT. Service intervals are typically 5-7 years for both.
Water Resistance
200m (20 ATM) Diver vs 200m (20 ATM)
The Duro MDV106 is rated to 200m (20 ATM) Diver while the Ocean Star GMT handles 200m (20 ATM). 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 AmazonMido
Ocean Star GMT
Choose the Mido Ocean Star GMT if you value Automatic (ETA C07.661 base) technology, Swiss Made heritage, and 44mm proportions. At $1,000–$1,500, the Automatic Caliber 80 (Base ETA C07.661) with 80 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Casio Duro MDV106 and Mido Ocean Star GMT represent two distinct approaches to the diver category — the Casio bringing Casio (Japan) tradition while Mido delivers Swiss Made 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.