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Hamilton Khaki Aviation Pilot Auto vs Invicta Pro Diver Automatic 23681
Hamilton's pilot watch meets Invicta's diver
Quick Verdict
The Invicta Pro Diver Automatic 23681 ($50–$100) delivers Automatic (Seiko NH35A) technology in the tier below the Hamilton Khaki Aviation Pilot Auto ($1,000–$1,500). The Pro Diver Automatic 23681 measures 40mm and is rated 200m. 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 | Invicta Pro Diver Automatic 23681 |
|---|---|---|
| Price | $1,000–$1,500 | $50–$100 |
| Case Size | 38mm | 40mm |
| Movement | Automatic H-10 (ETA 2824-2 base) | Automatic NH35A |
| Caliber Type | Hamilton/ETA Automatic | Automatic (Seiko NH35A) |
| Power Reserve | 80 Hours | — |
| Water Resistance | 100m (10 ATM) | 200m |
| Crystal | Sapphire Crystal | Mineral Glass |
| Case Material | Stainless Steel | — |
| Origin | Swiss Made | Invicta (Japanese movement) |
Category-by-Category Analysis
Design & Aesthetics
Hamilton's design language vs Invicta's approach
The Hamilton Khaki Aviation Pilot Auto features a Stainless Steel case at 38mm with Sapphire Crystal protection. The Invicta Pro Diver Automatic 23681 offers steel construction at 40mm with Mineral Glass. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic H-10 (ETA 2824-2 base) vs Automatic NH35A
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 Pro Diver Automatic 23681 uses the Automatic NH35A (Automatic (Seiko NH35A), standard reserve) at standard. The Khaki Aviation Pilot Auto edges ahead on power reserve.
Wearability & Fit
38mm vs 40mm — different wrist presence
At 38mm, the Khaki Aviation Pilot Auto wears more compactly on smaller wrists compared to the Pro Diver Automatic 23681 at 40mm. Water resistance differs: 100m (10 ATM) vs 200m.
Value & Cost of Ownership
Invicta sits in the lower tier
The Hamilton Khaki Aviation Pilot Auto sits at $1,000–$1,500 and the Invicta Pro Diver Automatic 23681 at $50–$100. On the specs that outlast any price: the Khaki Aviation Pilot Auto uses Sapphire Crystal with 80 Hours, against Mineral Glass and a standard reserve on the Pro Diver Automatic 23681. Service intervals are typically 5-7 years for both.
Water Resistance
100m (10 ATM) vs 200m
The Khaki Aviation Pilot Auto is rated to 100m (10 ATM) while the Pro Diver Automatic 23681 handles 200m. The Pro Diver Automatic 23681 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.
View the dossierInvicta
Pro Diver Automatic 23681
Choose the Invicta Pro Diver Automatic 23681 if you value Automatic (Seiko NH35A) technology, Invicta (Japanese movement) heritage, and 40mm proportions. At $50–$100, the Automatic NH35A with ample power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Hamilton Khaki Aviation Pilot Auto and Invicta Pro Diver Automatic 23681 represent two distinct approaches to fine watchmaking — the Hamilton bringing Swiss Made tradition while Invicta delivers Invicta (Japanese movement) 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.