Hamilton Khaki Aviation Pilot Auto vs Orient Kamasu Automatic Diver
Hamilton's pilot watch meets Orient's diver
Quick Verdict
The Orient Kamasu Automatic Diver ($250–$500) delivers Orient In-House Automatic technology in the tier below the Hamilton Khaki Aviation Pilot Auto ($1,000–$1,500). The Kamasu Automatic Diver measures 41.8mm and is rated 200m (20 ATM). The Khaki Aviation Pilot Auto justifies its premium with Swiss Made heritage and Automatic H-10 (ETA 2824-2 base). Both represent excellent choices in the luxury watch category.
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Specifications Compared
| Feature | Hamilton Khaki Aviation Pilot Auto | Orient Kamasu Automatic Diver |
|---|---|---|
| Price | $1,000–$1,500 | $250–$500 |
| Case Size | 38mm | 41.8mm |
| Movement | Automatic H-10 (ETA 2824-2 base) | Automatic Caliber F6922 |
| Caliber Type | Hamilton/ETA Automatic | Orient In-House Automatic |
| Power Reserve | 80 Hours | 40 Hours |
| Water Resistance | 100m (10 ATM) | 200m (20 ATM) |
| 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 Orient's approach
The Hamilton Khaki Aviation Pilot Auto features a Stainless Steel case at 38mm with Sapphire Crystal protection. The Orient Kamasu Automatic Diver offers Stainless Steel construction at 41.8mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic H-10 (ETA 2824-2 base) vs Automatic Caliber F6922
The Khaki Aviation Pilot Auto runs the Automatic H-10 (ETA 2824-2 base) (Hamilton/ETA Automatic, 80 Hours power reserve) at 21,600 vph (3 Hz) frequency. The Kamasu Automatic Diver uses the Automatic Caliber F6922 (Orient In-House Automatic, 40 Hours reserve) at 21,600 vph (3 Hz). The Khaki Aviation Pilot Auto edges ahead on power reserve.
Wearability & Fit
38mm vs 41.8mm — different wrist presence
At 38mm, the Khaki Aviation Pilot Auto wears more compactly on smaller wrists compared to the Kamasu Automatic Diver at 41.8mm. Water resistance differs: 100m (10 ATM) vs 200m (20 ATM).
Value & Cost of Ownership
Orient sits in the lower tier
The Hamilton Khaki Aviation Pilot Auto sits at $1,000–$1,500 and the Orient Kamasu Automatic Diver at $250–$500. On the specs that outlast any price: the Khaki Aviation Pilot Auto uses Sapphire Crystal with 80 Hours, against Sapphire Crystal and 40 Hours on the Kamasu Automatic Diver. Service intervals are typically 5-7 years for both.
Water Resistance
100m (10 ATM) vs 200m (20 ATM)
The Khaki Aviation Pilot Auto is rated to 100m (10 ATM) while the Kamasu Automatic Diver handles 200m (20 ATM). The Kamasu Automatic Diver offers superior water resistance.
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 $1,000–$1,500, it delivers Automatic H-10 (ETA 2824-2 base) with 80 Hours power reserve.
Check Price on AmazonOrient
Kamasu Automatic Diver
Choose the Orient Kamasu Automatic Diver if you value Orient In-House Automatic technology, Made in Japan heritage, and 41.8mm proportions. At $250–$500, the Automatic Caliber F6922 with 40 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Hamilton Khaki Aviation Pilot Auto and Orient Kamasu Automatic Diver represent two distinct approaches to fine watchmaking — the Hamilton bringing Swiss Made tradition while Orient delivers Made in Japan engineering.
Frequently Asked Questions
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How This Page Was Made
Our comparisons are generated from a hand-maintained specification database and reviewed under our editorial standards. We use AI tools to assemble pages from that data. We don’t invent specs: every number traces back to the database, and when we correct an entry, the fix is applied site-wide. As an Amazon Associate, The Horologist earns from qualifying purchases.