Omega Speedmaster Professional vs Citizen Tsuyosa Automatic (Green Dial)
Omega's chronograph meets Citizen's timepiece
Quick Verdict
The Citizen Tsuyosa Automatic (Green Dial) ($250–$500) delivers Citizen/Miyota In-House Automatic technology in the tier below the Omega Speedmaster Professional ($5,000–$10,000). The Tsuyosa Automatic (Green Dial) measures 40mm and is rated 50m (5 ATM). The Speedmaster Professional justifies its premium with Swiss Made heritage and Manual-Winding Caliber 3861. Both represent excellent choices in the luxury watch category.
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Specifications Compared
| Feature | Omega Speedmaster Professional | Citizen Tsuyosa Automatic (Green Dial) |
|---|---|---|
| Price | $5,000–$10,000 | $250–$500 |
| Case Size | 42mm | 40mm |
| Movement | Manual-Winding Caliber 3861 | Automatic Caliber 8210 |
| Caliber Type | In-House Manual-Winding Manufacture (Co-Axial) | Citizen/Miyota In-House Automatic |
| Power Reserve | 50 Hours | 40 Hours |
| Water Resistance | 50m (5 ATM) | 50m (5 ATM) |
| Crystal | Hesalite or Sapphire | Sapphire Crystal with Cyclops |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Swiss Made | Made in Japan |
Category-by-Category Analysis
Design & Aesthetics
Omega's design language vs Citizen's approach
The Omega Speedmaster Professional features a Stainless Steel case at 42mm with Hesalite or Sapphire protection. The Citizen Tsuyosa Automatic (Green Dial) offers Stainless Steel construction at 40mm with Sapphire Crystal with Cyclops. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Manual-Winding Caliber 3861 vs Automatic Caliber 8210
The Speedmaster Professional runs the Manual-Winding Caliber 3861 (In-House Manual-Winding Manufacture (Co-Axial), 50 Hours power reserve) at 21,600 vph (3 Hz) frequency. The Tsuyosa Automatic (Green Dial) uses the Automatic Caliber 8210 (Citizen/Miyota In-House Automatic, 40 Hours reserve) at 21,600 vph (3 Hz). The Speedmaster Professional edges ahead on power reserve.
Wearability & Fit
42mm vs 40mm — different wrist presence
At 42mm, the Speedmaster Professional has a bolder wrist presence compared to the Tsuyosa Automatic (Green Dial) at 40mm. Water resistance differs: 50m (5 ATM) vs 50m (5 ATM).
Value & Cost of Ownership
Citizen sits in the lower tier
The Omega Speedmaster Professional sits at $5,000–$10,000 and the Citizen Tsuyosa Automatic (Green Dial) at $250–$500. On the specs that outlast any price: the Speedmaster Professional uses Hesalite or Sapphire with 50 Hours, against Sapphire Crystal with Cyclops and 40 Hours on the Tsuyosa Automatic (Green Dial). Service intervals are typically 5-7 years for both.
Water Resistance
50m (5 ATM) vs 50m (5 ATM)
The Speedmaster Professional is rated to 50m (5 ATM) while the Tsuyosa Automatic (Green Dial) handles 50m (5 ATM). Both offer identical water resistance ratings.
Our Verdict
Omega
Speedmaster Professional
Choose the Omega Speedmaster Professional if you prioritize In-House Manual-Winding Manufacture (Co-Axial) engineering, Swiss Made craftsmanship, and 50m (5 ATM) water resistance. At $5,000–$10,000, it delivers Manual-Winding Caliber 3861 with 50 Hours power reserve.
Check Price on AmazonCitizen
Tsuyosa Automatic (Green Dial)
Choose the Citizen Tsuyosa Automatic (Green Dial) if you value Citizen/Miyota In-House Automatic technology, Made in Japan heritage, and 40mm proportions. At $250–$500, the Automatic Caliber 8210 with 40 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Omega Speedmaster Professional and Citizen Tsuyosa Automatic (Green Dial) represent two distinct approaches to fine watchmaking — the Omega bringing Swiss Made tradition while Citizen delivers Made in Japan 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.