Hamilton Khaki Field Automatic vs Seiko 5 Sports GMT SSK001
Hamilton's field watch meets Seiko's GMT watch
Quick Verdict
The Seiko 5 Sports GMT SSK001 (~$495) delivers Seiko In-House Automatic GMT technology at $300 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 5 Sports GMT SSK001 |
|---|---|---|
| Price | ~$795 | ~$495 |
| Case Size | 38mm | 42.5mm |
| Movement | Automatic H-10 | Automatic Caliber 4R34 (True GMT) |
| Caliber Type | Automatic (ETA C07.611 base) | Seiko In-House Automatic GMT |
| Power Reserve | 80 Hours | 41 Hours |
| Water Resistance | 100m (10 ATM) | 100m (10 ATM) |
| Crystal | Sapphire Crystal | Hardlex 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 4R34 (True GMT)
Wearability & Fit
38mm vs 42.5mm — different wrist presence
Value & Cost of Ownership
Seiko is $300 more affordable
Water Resistance
100m (10 ATM) vs 100m (10 ATM)
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
5 Sports GMT SSK001
Choose the Seiko 5 Sports GMT SSK001 if you value Seiko In-House Automatic GMT technology, Made in Japan heritage, and 42.5mm proportions. At ~$495, the Automatic Caliber 4R34 (True GMT) with 41 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Hamilton Khaki Field Automatic and Seiko 5 Sports GMT SSK001 represent two distinct approaches to fine watchmaking — the Hamilton bringing Swiss Made tradition while Seiko delivers Made in Japan engineering.
Frequently Asked Questions
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