Hamilton Khaki Field Automatic vs Seiko Prospex "Turtle"
Hamilton's field watch meets Seiko's diver
Quick Verdict
The Seiko Prospex "Turtle" (~$500) delivers In-House Automatic Manufacture technology at $295 less than the Hamilton Khaki Field Automatic (~$795). The Khaki Field Automatic justifies its premium with Swiss Made heritage and Automatic H-10. Both represent excellent choices in the luxury watch category.
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Specifications Compared
| Feature | Hamilton Khaki Field Automatic | Seiko Prospex "Turtle" |
|---|---|---|
| Price | ~$795 | ~$500 |
| Case Size | 38mm | 45mm |
| Movement | Automatic H-10 | Automatic Caliber 4R36 |
| Caliber Type | Automatic (ETA C07.611 base) | In-House Automatic Manufacture |
| Power Reserve | 80 Hours | 41 Hours |
| Water Resistance | 100m (10 ATM) | 200m (20 ATM) Diver |
| Crystal | Sapphire Crystal | Sapphire Crystal |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Swiss Made | Made in Japan |
Category-by-Category Analysis
Design & Aesthetics
Hamilton's design language vs Seiko's approach
Movement & Performance
Automatic H-10 vs Automatic Caliber 4R36
Wearability & Fit
38mm vs 45mm — different wrist presence
Value & Cost of Ownership
Seiko is $295 more affordable
Water Resistance
100m (10 ATM) vs 200m (20 ATM) Diver
Our Verdict
Hamilton
Khaki Field Automatic
Choose the Hamilton Khaki Field Automatic if you prioritize Automatic (ETA C07.611 base) engineering, Swiss Made craftsmanship, and 100m (10 ATM) water resistance. At ~$795, it delivers Automatic H-10 with 80 Hours 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 Hamilton Khaki Field Automatic and Seiko Prospex "Turtle" represent two distinct approaches to fine watchmaking — the Hamilton bringing Swiss Made tradition while Seiko delivers Made in Japan engineering.