Citizen Promaster Skyhawk A-T vs Mido Ocean Star GMT
Citizen's chronograph meets Mido's diver
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 Mido Ocean Star GMT ($1,000–$1,500). The Promaster Skyhawk A-T measures 45mm and is rated 200m (20 ATM). The Ocean Star GMT counters with Swiss Made craftsmanship and 200m (20 ATM) water resistance. Both are exceptional watches for their respective tiers.
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Specifications Compared
| Feature | Citizen Promaster Skyhawk A-T | Mido Ocean Star GMT |
|---|---|---|
| Price | $500–$1,000 | $1,000–$1,500 |
| Case Size | 45mm | 44mm |
| Movement | Eco-Drive (Radio-Controlled, Atomic Timekeeping) | Automatic Caliber 80 (Base ETA C07.661) |
| Caliber Type | Citizen Eco-Drive U680 (Solar + Radio-Controlled) | Automatic (ETA C07.661 base) |
| Power Reserve | — | 80 Hours |
| Water Resistance | 200m (20 ATM) | 200m (20 ATM) |
| Crystal | Sapphire Crystal | Sapphire with Double-sided AR |
| 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 Mido's approach
The Citizen Promaster Skyhawk A-T features a Stainless Steel (Black Ion-Plated) case at 45mm with Sapphire Crystal protection. The Mido Ocean Star GMT offers Stainless Steel construction at 44mm with Sapphire with Double-sided AR. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Eco-Drive (Radio-Controlled, Atomic Timekeeping) vs Automatic Caliber 80 (Base ETA C07.661)
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 Ocean Star GMT uses the Automatic Caliber 80 (Base ETA C07.661) (Automatic (ETA C07.661 base), 80 Hours reserve) at 21,600 vph (3 Hz). The Ocean Star GMT offers a longer power reserve.
Wearability & Fit
45mm vs 44mm — different wrist presence
At 45mm, the Promaster Skyhawk A-T has a bolder wrist presence compared to the Ocean Star GMT at 44mm. Water resistance differs: 200m (20 ATM) vs 200m (20 ATM).
Value & Cost of Ownership
Citizen sits in the lower tier
The Citizen Promaster Skyhawk A-T sits at $500–$1,000 and the Mido Ocean Star GMT at $1,000–$1,500. On the specs that outlast any price: the Promaster Skyhawk A-T uses Sapphire Crystal with a standard reserve, against Sapphire with Double-sided AR and 80 Hours on the Ocean Star GMT. Service intervals are typically 5-7 years for both.
Water Resistance
200m (20 ATM) vs 200m (20 ATM)
The Promaster Skyhawk A-T is rated to 200m (20 ATM) while the Ocean Star GMT handles 200m (20 ATM). Both offer identical water resistance ratings.
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 AmazonMido
Ocean Star GMT
Choose the Mido Ocean Star GMT if you value Automatic (ETA C07.661 base) technology, Swiss Made heritage, and 44mm proportions. At $1,000–$1,500, the Automatic Caliber 80 (Base ETA C07.661) with 80 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Citizen Promaster Skyhawk A-T and Mido Ocean Star GMT represent two distinct approaches to fine watchmaking — the Citizen bringing Made in Japan tradition while Mido 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.