Bulova Classic Automatic 98A139 vs Hamilton Intra-Matic Auto Chronograph
Bulova's timepiece meets Hamilton's chronograph
Quick Verdict
The Bulova Classic Automatic 98A139 ($250–$500) offers Self-Winding Automatic precision in the tier below the Hamilton Intra-Matic Auto Chronograph ($2,500–$5,000). The Classic Automatic 98A139 measures 45mm and is rated 30m (3 ATM). The Intra-Matic Auto Chronograph counters with Swiss Made craftsmanship and 100m (10 ATM) water resistance. Both are exceptional watches for their respective tiers.
Transparency — We earn a small commission on purchases made through our Amazon links. This doesn't affect our editorial independence.
Specifications Compared
| Feature | Bulova Classic Automatic 98A139 | Hamilton Intra-Matic Auto Chronograph |
|---|---|---|
| Price | $250–$500 | $2,500–$5,000 |
| Case Size | 45mm | 40mm |
| Movement | Automatic, 21 Jewels | Automatic H-31 |
| Caliber Type | Self-Winding Automatic | Valjoux-Based Automatic Chronograph |
| Power Reserve | — | 60 Hours |
| Water Resistance | 30m (3 ATM) | 100m (10 ATM) |
| Crystal | Domed Crystal | Sapphire (Domed) |
| Case Material | Black Ion-Plated Stainless Steel | Stainless Steel |
| Origin | Japanese Movement | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Bulova's design language vs Hamilton's approach
The Bulova Classic Automatic 98A139 features a Black Ion-Plated Stainless Steel case at 45mm with Domed Crystal protection. The Hamilton Intra-Matic Auto Chronograph offers Stainless Steel construction at 40mm with Sapphire (Domed). Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic, 21 Jewels vs Automatic H-31
The Classic Automatic 98A139 runs the Automatic, 21 Jewels (Self-Winding Automatic, standard power reserve) at standard frequency. The Intra-Matic Auto Chronograph uses the Automatic H-31 (Valjoux-Based Automatic Chronograph, 60 Hours reserve) at 28,800 vph (4 Hz). The Intra-Matic Auto Chronograph offers a longer power reserve.
Wearability & Fit
45mm vs 40mm — different wrist presence
At 45mm, the Classic Automatic 98A139 has a bolder wrist presence compared to the Intra-Matic Auto Chronograph at 40mm. Water resistance differs: 30m (3 ATM) vs 100m (10 ATM).
Value & Cost of Ownership
Bulova sits in the lower tier
The Bulova Classic Automatic 98A139 sits at $250–$500 and the Hamilton Intra-Matic Auto Chronograph at $2,500–$5,000. On the specs that outlast any price: the Classic Automatic 98A139 uses Domed Crystal with a standard reserve, against Sapphire (Domed) and 60 Hours on the Intra-Matic Auto Chronograph. Service intervals are typically 5-7 years for both.
Water Resistance
30m (3 ATM) vs 100m (10 ATM)
The Classic Automatic 98A139 is rated to 30m (3 ATM) while the Intra-Matic Auto Chronograph handles 100m (10 ATM). The Intra-Matic Auto Chronograph offers superior water resistance.
Our Verdict
Bulova
Classic Automatic 98A139
Choose the Bulova Classic Automatic 98A139 if you prioritize Self-Winding Automatic engineering, Japanese Movement craftsmanship, and 30m (3 ATM) water resistance. At $250–$500, it delivers Automatic, 21 Jewels with solid power reserve.
Check Price on AmazonHamilton
Intra-Matic Auto Chronograph
Choose the Hamilton Intra-Matic Auto Chronograph if you value Valjoux-Based Automatic Chronograph technology, Swiss Made heritage, and 40mm proportions. At $2,500–$5,000, the Automatic H-31 with 60 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Bulova Classic Automatic 98A139 and Hamilton Intra-Matic Auto Chronograph represent two distinct approaches to fine watchmaking — the Bulova bringing Japanese Movement tradition while Hamilton delivers Swiss Made engineering.
Frequently Asked Questions
More Comparisons
Bulova Lunar Pilot vs Hamilton Intra-Matic Chrono
Moon-worn quartz precision meets Swiss automatic heritage
Tag Heuer Carrera Chronograph vs Bulova Classic Automatic 98A139
Tag Heuer's chronograph meets Bulova's timepiece
Tag Heuer Carrera Chronograph vs Hamilton Intra-Matic Auto Chronograph
Two chronographs compared — $2,500–$5,000 vs $2,500–$5,000
Explore These Watches
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.