Citizen Promaster Skyhawk A-T vs Hamilton Intra-Matic Auto Chronograph
Two chronographs compared — $500–$1,000 vs $2,500–$5,000
Quick Verdict
The Citizen Promaster Skyhawk A-T ($500–$1,000) offers Citizen Eco-Drive U680 (Solar + Radio-Controlled) precision in the tier below the Hamilton Intra-Matic Auto Chronograph ($2,500–$5,000). The Promaster Skyhawk A-T measures 45mm and is rated 200m (20 ATM). The Intra-Matic Auto Chronograph counters with Swiss Made craftsmanship and 100m (10 ATM) water resistance. Both are exceptional chronographs for their respective tiers.
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Specifications Compared
| Feature | Citizen Promaster Skyhawk A-T | Hamilton Intra-Matic Auto Chronograph |
|---|---|---|
| Price | $500–$1,000 | $2,500–$5,000 |
| Case Size | 45mm | 40mm |
| Movement | Eco-Drive (Radio-Controlled, Atomic Timekeeping) | Automatic H-31 |
| Caliber Type | Citizen Eco-Drive U680 (Solar + Radio-Controlled) | Valjoux-Based Automatic Chronograph |
| Power Reserve | — | 60 Hours |
| Water Resistance | 200m (20 ATM) | 100m (10 ATM) |
| Crystal | Sapphire Crystal | Sapphire (Domed) |
| Case Material | Stainless Steel (Black Ion-Plated) | Stainless Steel |
| Origin | Made in Japan | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Citizen's design language vs Hamilton's approach
The Citizen Promaster Skyhawk A-T features a Stainless Steel (Black Ion-Plated) case at 45mm with Sapphire 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
Eco-Drive (Radio-Controlled, Atomic Timekeeping) vs Automatic H-31
The Promaster Skyhawk A-T runs the Eco-Drive (Radio-Controlled, Atomic Timekeeping) (Citizen Eco-Drive U680 (Solar + Radio-Controlled), 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 Promaster Skyhawk A-T has a bolder wrist presence compared to the Intra-Matic Auto Chronograph at 40mm. Water resistance differs: 200m (20 ATM) vs 100m (10 ATM).
Value & Cost of Ownership
Citizen sits in the lower tier
The Citizen Promaster Skyhawk A-T sits at $500–$1,000 and the Hamilton Intra-Matic Auto Chronograph at $2,500–$5,000. On the specs that outlast any price: the Promaster Skyhawk A-T uses Sapphire 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
200m (20 ATM) vs 100m (10 ATM)
The Promaster Skyhawk A-T is rated to 200m (20 ATM) while the Intra-Matic Auto Chronograph handles 100m (10 ATM). The Promaster Skyhawk A-T is better suited for water activities.
Our Verdict
Citizen
Promaster Skyhawk A-T
Choose the Citizen Promaster Skyhawk A-T if you prioritize Citizen Eco-Drive U680 (Solar + Radio-Controlled) engineering, Made in Japan craftsmanship, and 200m (20 ATM) water resistance. At $500–$1,000, it delivers Eco-Drive (Radio-Controlled, Atomic Timekeeping) 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 Citizen Promaster Skyhawk A-T and Hamilton Intra-Matic Auto Chronograph represent two distinct approaches to the chronograph category — the Citizen bringing Made in Japan tradition while Hamilton delivers Swiss Made engineering.
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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.