Citizen Promaster Skyhawk A-T vs Longines Master Collection Moonphase
Citizen's chronograph meets Longines's dress watch
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 Longines Master Collection Moonphase ($2,500–$5,000). The Promaster Skyhawk A-T measures 45mm and is rated 200m (20 ATM). The Master Collection Moonphase counters with Swiss Made craftsmanship and 30m (3 ATM) water resistance. Both are exceptional watches for their respective tiers.
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Specifications Compared
| Feature | Citizen Promaster Skyhawk A-T | Longines Master Collection Moonphase |
|---|---|---|
| Price | $500–$1,000 | $2,500–$5,000 |
| Case Size | 45mm | 40mm |
| Movement | Eco-Drive (Radio-Controlled, Atomic Timekeeping) | Automatic Caliber L899 |
| Caliber Type | Citizen Eco-Drive U680 (Solar + Radio-Controlled) | Automatic (ETA A31.L91 base) |
| Power Reserve | — | 72 Hours |
| Water Resistance | 200m (20 ATM) | 30m (3 ATM) |
| Crystal | Sapphire Crystal | Sapphire Crystal |
| 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 Longines's approach
The Citizen Promaster Skyhawk A-T features a Stainless Steel (Black Ion-Plated) case at 45mm with Sapphire Crystal protection. The Longines Master Collection Moonphase offers Stainless Steel construction at 40mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Eco-Drive (Radio-Controlled, Atomic Timekeeping) vs Automatic Caliber L899
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 Master Collection Moonphase uses the Automatic Caliber L899 (Automatic (ETA A31.L91 base), 72 Hours reserve) at 25,200 vph (3.5 Hz). The Master Collection Moonphase 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 Master Collection Moonphase at 40mm. Water resistance differs: 200m (20 ATM) vs 30m (3 ATM).
Value & Cost of Ownership
Citizen sits in the lower tier
The Citizen Promaster Skyhawk A-T sits at $500–$1,000 and the Longines Master Collection Moonphase 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 Crystal and 72 Hours on the Master Collection Moonphase. Service intervals are typically 5-7 years for both.
Water Resistance
200m (20 ATM) vs 30m (3 ATM)
The Promaster Skyhawk A-T is rated to 200m (20 ATM) while the Master Collection Moonphase handles 30m (3 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 AmazonLongines
Master Collection Moonphase
Choose the Longines Master Collection Moonphase if you value Automatic (ETA A31.L91 base) technology, Swiss Made heritage, and 40mm proportions. At $2,500–$5,000, the Automatic Caliber L899 with 72 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Citizen Promaster Skyhawk A-T and Longines Master Collection Moonphase represent two distinct approaches to fine watchmaking — the Citizen bringing Made in Japan tradition while Longines 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.