Citizen Promaster Air Nighthawk vs Hamilton Intra-Matic Auto Chronograph
Citizen's diver meets Hamilton's chronograph
Quick Verdict
The Citizen Promaster Air Nighthawk ($250–$500) offers Eco-Drive Solar Quartz (No Battery Change) precision in the tier below the Hamilton Intra-Matic Auto Chronograph ($2,500–$5,000). The Promaster Air Nighthawk measures 42mm 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 watches for their respective tiers.
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Specifications Compared
| Feature | Citizen Promaster Air Nighthawk | Hamilton Intra-Matic Auto Chronograph |
|---|---|---|
| Price | $250–$500 | $2,500–$5,000 |
| Case Size | 42mm | 40mm |
| Movement | Eco-Drive Caliber B877 | Automatic H-31 |
| Caliber Type | Eco-Drive Solar Quartz (No Battery Change) | Valjoux-Based Automatic Chronograph |
| Power Reserve | 6 Months (Solar, Full Charge) | 60 Hours |
| Water Resistance | 200m (20 ATM) | 100m (10 ATM) |
| Crystal | Mineral Glass | Sapphire (Domed) |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Citizen (Japan) | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Citizen's design language vs Hamilton's approach
The Citizen Promaster Air Nighthawk features a Stainless Steel case at 42mm with Mineral Glass 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 Caliber B877 vs Automatic H-31
The Promaster Air Nighthawk runs the Eco-Drive Caliber B877 (Eco-Drive Solar Quartz (No Battery Change), 6 Months (Solar, Full Charge) 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
42mm vs 40mm — different wrist presence
At 42mm, the Promaster Air Nighthawk 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 Air Nighthawk sits at $250–$500 and the Hamilton Intra-Matic Auto Chronograph at $2,500–$5,000. On the specs that outlast any price: the Promaster Air Nighthawk uses Mineral Glass with 6 Months (Solar, Full Charge), 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 Air Nighthawk is rated to 200m (20 ATM) while the Intra-Matic Auto Chronograph handles 100m (10 ATM). The Promaster Air Nighthawk is better suited for water activities.
Our Verdict
Citizen
Promaster Air Nighthawk
Choose the Citizen Promaster Air Nighthawk if you prioritize Eco-Drive Solar Quartz (No Battery Change) engineering, Citizen (Japan) craftsmanship, and 200m (20 ATM) water resistance. At $250–$500, it delivers Eco-Drive Caliber B877 with 6 Months (Solar, Full Charge) 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 Air Nighthawk and Hamilton Intra-Matic Auto Chronograph represent two distinct approaches to fine watchmaking — the Citizen bringing Citizen (Japan) tradition while Hamilton 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.