Head-to-Head Comparison

Hamilton Khaki Aviation Pilot Auto vs Oris Aquis Date Calibre 400

Hamilton's pilot watch meets Oris's diver

Quick Verdict

The Hamilton Khaki Aviation Pilot Auto (~$1,125) offers Hamilton/ETA Automatic precision at $1,470 less than the Oris Aquis Date Calibre 400 (~$2,595). The Aquis Date Calibre 400 counters with Swiss Made craftsmanship and 300m (30 ATM) water resistance. Both are exceptional watches for their respective price points.

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Hamilton Khaki Aviation Pilot Auto

Hamilton

Khaki Aviation Pilot Auto

~$1,125

Oris Aquis Date Calibre 400

Oris

Aquis Date Calibre 400

~$2,595

Specifications Compared

FeatureHamilton Khaki Aviation Pilot AutoOris Aquis Date Calibre 400
Price~$1,125~$2,595
Case Size38mm41.5mm
MovementAutomatic H-10 (ETA 2824-2 base)Automatic Calibre 400
Caliber TypeHamilton/ETA AutomaticOris In-House Manufacture
Power Reserve80 Hours120 Hours (5 Days)
Water Resistance100m (10 ATM)300m (30 ATM)
CrystalSapphire CrystalSapphire Crystal with Anti-Reflective Coating
Case MaterialStainless SteelStainless Steel
OriginSwiss MadeSwiss Made

Category-by-Category Analysis

🎨

Design & Aesthetics

Edge: Draw

Hamilton's design language vs Oris's approach

⚙️

Movement & Performance

Edge: Oris

Automatic H-10 (ETA 2824-2 base) vs Automatic Calibre 400

📏

Wearability & Fit

Edge: Hamilton

38mm vs 41.5mm — different wrist presence

💰

Value & Cost of Ownership

Edge: Hamilton

Hamilton is $1,470 more affordable

💧

Water Resistance

Edge: Oris

100m (10 ATM) vs 300m (30 ATM)

Our Verdict

Hamilton

Khaki Aviation Pilot Auto

Choose the Hamilton Khaki Aviation Pilot Auto if you prioritize Hamilton/ETA Automatic engineering, Swiss Made craftsmanship, and 100m (10 ATM) water resistance. At ~$1,125, it delivers Automatic H-10 (ETA 2824-2 base) with 80 Hours power reserve.

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Oris

Aquis Date Calibre 400

Choose the Oris Aquis Date Calibre 400 if you value Oris In-House Manufacture technology, Swiss Made heritage, and 41.5mm proportions. At ~$2,595, the Automatic Calibre 400 with 120 Hours (5 Days) power reserve makes it a compelling choice.

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The Bottom Line

The Hamilton Khaki Aviation Pilot Auto and Oris Aquis Date Calibre 400 represent two distinct approaches to fine watchmaking — the Hamilton bringing Swiss Made tradition while Oris delivers Swiss Made engineering.

Frequently Asked Questions