Seiko Prospex "Turtle" vs Seiko Prospex Alpinist
Two divers compared — ~$500 vs ~$620
Quick Verdict
The Seiko Prospex "Turtle" (~$500) offers In-House Automatic Manufacture precision at $120 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.
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Specifications Compared
| Feature | Seiko Prospex "Turtle" | Seiko Prospex Alpinist |
|---|---|---|
| Price | ~$500 | ~$620 |
| Case Size | 45mm | 39.5mm |
| Movement | Automatic Caliber 4R36 | Automatic Caliber 6R35 |
| Caliber Type | In-House Automatic Manufacture | In-House Automatic Manufacture |
| Power Reserve | 41 Hours | 70 Hours |
| Water Resistance | 200m (20 ATM) Diver | 200m (20 ATM) |
| Crystal | Sapphire Crystal | Sapphire with Cyclops |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Made in Japan | Made in Japan |
Category-by-Category Analysis
Design & Aesthetics
Seiko's design language vs Seiko's approach
Movement & Performance
Automatic Caliber 4R36 vs Automatic Caliber 6R35
Wearability & Fit
45mm vs 39.5mm — different wrist presence
Value & Cost of Ownership
Seiko is $120 more affordable
Water Resistance
200m (20 ATM) Diver vs 200m (20 ATM)
Our Verdict
Seiko
Prospex "Turtle"
Choose the Seiko Prospex "Turtle" if you prioritize In-House Automatic Manufacture engineering, Made in Japan craftsmanship, and 200m (20 ATM) Diver water resistance. At ~$500, it delivers Automatic Caliber 4R36 with 41 Hours 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 Seiko Prospex "Turtle" and Seiko Prospex Alpinist represent two distinct approaches to the diver category — the Seiko bringing Made in Japan tradition while Seiko delivers Made in Japan engineering.