Casio Duro MDV106 vs Seiko Prospex Alpinist
Two divers compared — ~$65 vs ~$620
Quick Verdict
The Casio Duro MDV106 (~$65) offers Casio Quartz (Battery) precision at $555 less than the Seiko Prospex Alpinist (~$620). The Prospex Alpinist counters with Made in Japan craftsmanship and 200m (20 ATM) water resistance. Both are exceptional divers for their respective price points.
Transparency — We earn a small commission on purchases made through our Amazon links. This doesn't affect our editorial independence.
Specifications Compared
| Feature | Casio Duro MDV106 | Seiko Prospex Alpinist |
|---|---|---|
| Price | ~$65 | ~$620 |
| Case Size | 44mm | 39.5mm |
| Movement | Quartz Module 2784 | Automatic Caliber 6R35 |
| Caliber Type | Casio Quartz (Battery) | In-House Automatic Manufacture |
| Power Reserve | 3-Year Battery | 70 Hours |
| Water Resistance | 200m (20 ATM) Diver | 200m (20 ATM) |
| Crystal | Mineral Glass | Sapphire with Cyclops |
| 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 6R35
Wearability & Fit
44mm vs 39.5mm — different wrist presence
Value & Cost of Ownership
Casio is $555 more affordable
Water Resistance
200m (20 ATM) Diver vs 200m (20 ATM)
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 Alpinist
Choose the Seiko Prospex Alpinist if you value In-House Automatic Manufacture technology, Made in Japan heritage, and 39.5mm proportions. At ~$620, the Automatic Caliber 6R35 with 70 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Casio Duro MDV106 and Seiko Prospex Alpinist represent two distinct approaches to the diver category — the Casio bringing Casio (Japan) tradition while Seiko delivers Made in Japan engineering.
Frequently Asked Questions
More Comparisons
Explore These Watches