Seiko Prospex "Turtle" vs Timex Marlin Automatic 40mm
Seiko's diver meets Timex's timepiece
Quick Verdict
The Timex Marlin Automatic 40mm (~$256) delivers Miyota Automatic technology at $244 less than the Seiko Prospex "Turtle" (~$500). The Prospex "Turtle" justifies its premium with Made in Japan heritage and Automatic Caliber 4R36. Both represent excellent choices in the luxury watch category.
Transparency — We earn a small commission on purchases made through our Amazon links. This doesn't affect our editorial independence.
Specifications Compared
| Feature | Seiko Prospex "Turtle" | Timex Marlin Automatic 40mm |
|---|---|---|
| Price | ~$500 | ~$256 |
| Case Size | 45mm | 40mm |
| Movement | Automatic Caliber 4R36 | Automatic Miyota 8205 |
| Caliber Type | In-House Automatic Manufacture | Miyota Automatic |
| Power Reserve | 41 Hours | 40 Hours |
| Water Resistance | 200m (20 ATM) Diver | 30m (3 ATM) |
| Crystal | Sapphire Crystal | Mineral Crystal |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Made in Japan | Made in Japan (Movement) |
Category-by-Category Analysis
Design & Aesthetics
Seiko's design language vs Timex's approach
Movement & Performance
Automatic Caliber 4R36 vs Automatic Miyota 8205
Wearability & Fit
45mm vs 40mm — different wrist presence
Value & Cost of Ownership
Timex is $244 more affordable
Water Resistance
200m (20 ATM) Diver vs 30m (3 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 AmazonTimex
Marlin Automatic 40mm
Choose the Timex Marlin Automatic 40mm if you value Miyota Automatic technology, Made in Japan (Movement) heritage, and 40mm proportions. At ~$256, the Automatic Miyota 8205 with 40 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Seiko Prospex "Turtle" and Timex Marlin Automatic 40mm represent two distinct approaches to fine watchmaking — the Seiko bringing Made in Japan tradition while Timex delivers Made in Japan (Movement) engineering.