Hamilton Intra-Matic Auto Chronograph vs Tissot Seastar 1000 Automatic
Hamilton's chronograph meets Tissot's diver
Quick Verdict
The Tissot Seastar 1000 Automatic ($500–$1,000) delivers ETA/Tissot Automatic technology in the tier below the Hamilton Intra-Matic Auto Chronograph ($2,500–$5,000). The Seastar 1000 Automatic measures 40mm and is rated 300m (30 ATM). 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 | Tissot Seastar 1000 Automatic |
|---|---|---|
| Price | $2,500–$5,000 | $500–$1,000 |
| Case Size | 40mm | 40mm |
| Movement | Automatic H-31 | Automatic Powermatic 80 (Caliber 80.111) |
| Caliber Type | Valjoux-Based Automatic Chronograph | ETA/Tissot Automatic |
| Power Reserve | 60 Hours | 80 Hours |
| Water Resistance | 100m (10 ATM) | 300m (30 ATM) |
| Crystal | Sapphire (Domed) | Sapphire Crystal |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Swiss Made | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Hamilton's design language vs Tissot's approach
The Hamilton Intra-Matic Auto Chronograph features a Stainless Steel case at 40mm with Sapphire (Domed) protection. The Tissot Seastar 1000 Automatic offers Stainless Steel construction at 40mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic H-31 vs Automatic Powermatic 80 (Caliber 80.111)
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 Seastar 1000 Automatic uses the Automatic Powermatic 80 (Caliber 80.111) (ETA/Tissot Automatic, 80 Hours reserve) at 21,600 vph (3 Hz). The Seastar 1000 Automatic offers a longer power reserve.
Wearability & Fit
40mm vs 40mm — different wrist presence
At 40mm, the Intra-Matic Auto Chronograph is similarly sized compared to the Seastar 1000 Automatic at 40mm. Water resistance differs: 100m (10 ATM) vs 300m (30 ATM).
Value & Cost of Ownership
Tissot sits in the lower tier
The Hamilton Intra-Matic Auto Chronograph sits at $2,500–$5,000 and the Tissot Seastar 1000 Automatic at $500–$1,000. On the specs that outlast any price: the Intra-Matic Auto Chronograph uses Sapphire (Domed) with 60 Hours, against Sapphire Crystal and 80 Hours on the Seastar 1000 Automatic. Service intervals are typically 5-7 years for both.
Water Resistance
100m (10 ATM) vs 300m (30 ATM)
The Intra-Matic Auto Chronograph is rated to 100m (10 ATM) while the Seastar 1000 Automatic handles 300m (30 ATM). The Seastar 1000 Automatic 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 AmazonTissot
Seastar 1000 Automatic
Choose the Tissot Seastar 1000 Automatic if you value ETA/Tissot Automatic technology, Swiss Made heritage, and 40mm proportions. At $500–$1,000, the Automatic Powermatic 80 (Caliber 80.111) with 80 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Hamilton Intra-Matic Auto Chronograph and Tissot Seastar 1000 Automatic represent two distinct approaches to fine watchmaking — the Hamilton bringing Swiss Made tradition while Tissot delivers Swiss Made 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.