Head-to-Head Comparison

Hamilton Khaki Field Automatic vs Seiko Prospex Alpinist

Hamilton's field watch meets Seiko's diver

Quick Verdict

The Seiko Prospex Alpinist (~$620) delivers In-House Automatic Manufacture technology at $175 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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Hamilton Khaki Field Automatic

Hamilton

Khaki Field Automatic

~$795

Seiko Prospex Alpinist

Seiko

Prospex Alpinist

~$620

Specifications Compared

FeatureHamilton Khaki Field AutomaticSeiko Prospex Alpinist
Price~$795~$620
Case Size38mm39.5mm
MovementAutomatic H-10Automatic Caliber 6R35
Caliber TypeAutomatic (ETA C07.611 base)In-House Automatic Manufacture
Power Reserve80 Hours70 Hours
Water Resistance100m (10 ATM)200m (20 ATM)
CrystalSapphire CrystalSapphire with Cyclops
Case MaterialStainless SteelStainless Steel
OriginSwiss MadeMade in Japan

Category-by-Category Analysis

🎨

Design & Aesthetics

Edge: Draw

Hamilton's design language vs Seiko's approach

⚙️

Movement & Performance

Edge: Hamilton

Automatic H-10 vs Automatic Caliber 6R35

📏

Wearability & Fit

Edge: Hamilton

38mm vs 39.5mm — different wrist presence

💰

Value & Cost of Ownership

Edge: Seiko

Seiko is $175 more affordable

💧

Water Resistance

Edge: Seiko

100m (10 ATM) vs 200m (20 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.

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Seiko

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.

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The Bottom Line

The Hamilton Khaki Field Automatic and Seiko Prospex Alpinist represent two distinct approaches to fine watchmaking — the Hamilton bringing Swiss Made tradition while Seiko delivers Made in Japan engineering.

Frequently Asked Questions