Hamilton Intra-Matic Auto Chronograph vs Invicta Pro Diver Automatic 23681
Hamilton's chronograph 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 Intra-Matic Auto Chronograph ($2,500–$5,000). The Pro Diver Automatic 23681 measures 40mm and is rated 200m. The Intra-Matic Auto Chronograph justifies its premium with Swiss Made heritage and Automatic H-31. Both represent excellent choices in the luxury watch category.
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Specifications Compared
| Feature | Hamilton Intra-Matic Auto Chronograph | Invicta Pro Diver Automatic 23681 |
|---|---|---|
| Price | $2,500–$5,000 | $50–$100 |
| Case Size | 40mm | 40mm |
| Movement | Automatic H-31 | Automatic NH35A |
| Caliber Type | Valjoux-Based Automatic Chronograph | Automatic (Seiko NH35A) |
| Power Reserve | 60 Hours | — |
| Water Resistance | 100m (10 ATM) | 200m |
| Crystal | Sapphire (Domed) | 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 Intra-Matic Auto Chronograph features a Stainless Steel case at 40mm with Sapphire (Domed) 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-31 vs Automatic NH35A
The Intra-Matic Auto Chronograph runs the Automatic H-31 (Valjoux-Based Automatic Chronograph, 60 Hours power reserve) at 28,800 vph (4 Hz) frequency. The Pro Diver Automatic 23681 uses the Automatic NH35A (Automatic (Seiko NH35A), standard reserve) at standard. The Intra-Matic Auto Chronograph edges ahead on power reserve.
Wearability & Fit
40mm vs 40mm — different wrist presence
At 40mm, the Intra-Matic Auto Chronograph is similarly sized 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 Intra-Matic Auto Chronograph sits at $2,500–$5,000 and the Invicta Pro Diver Automatic 23681 at $50–$100. On the specs that outlast any price: the Intra-Matic Auto Chronograph uses Sapphire (Domed) with 60 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 Intra-Matic Auto Chronograph 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
Intra-Matic Auto Chronograph
Choose the Hamilton Intra-Matic Auto Chronograph if you prioritize Valjoux-Based Automatic Chronograph engineering, Swiss Made craftsmanship, and 100m (10 ATM) water resistance. At $2,500–$5,000, it delivers Automatic H-31 with 60 Hours power reserve.
Check Price on AmazonInvicta
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 Intra-Matic Auto Chronograph 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.