Casio Duro MDV106 vs Seiko Prospex "Turtle"
Two divers compared — ~$65 vs ~$500
Quick Verdict
The Casio Duro MDV106 (~$65) offers Casio Quartz (Battery) precision at $435 less than the Seiko Prospex "Turtle" (~$500). The Prospex "Turtle" counters with Made in Japan craftsmanship and 200m (20 ATM) Diver water resistance. Both are exceptional divers for their respective price points.
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Specifications Compared
| Feature | Casio Duro MDV106 | Seiko Prospex "Turtle" |
|---|---|---|
| Price | ~$65 | ~$500 |
| Case Size | 44mm | 45mm |
| Movement | Quartz Module 2784 | Automatic Caliber 4R36 |
| Caliber Type | Casio Quartz (Battery) | In-House Automatic Manufacture |
| Power Reserve | 3-Year Battery | 41 Hours |
| Water Resistance | 200m (20 ATM) Diver | 200m (20 ATM) Diver |
| Crystal | Mineral Glass | Sapphire Crystal |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Casio (Japan) | Made in Japan |
Category-by-Category Analysis
Design & Aesthetics
Casio's design language vs Seiko's approach
Movement & Performance
Quartz Module 2784 vs Automatic Caliber 4R36
Wearability & Fit
44mm vs 45mm — different wrist presence
Value & Cost of Ownership
Casio is $435 more affordable
Water Resistance
200m (20 ATM) Diver vs 200m (20 ATM) Diver
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 ~$65, it delivers Quartz Module 2784 with 3-Year Battery power reserve.
Check Price on AmazonSeiko
Prospex "Turtle"
Choose the Seiko Prospex "Turtle" if you value In-House Automatic Manufacture technology, Made in Japan heritage, and 45mm proportions. At ~$500, the Automatic Caliber 4R36 with 41 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Casio Duro MDV106 and Seiko Prospex "Turtle" represent two distinct approaches to the diver category — the Casio bringing Casio (Japan) tradition while Seiko delivers Made in Japan engineering.
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