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Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer 41mm 220.10.41.21.03.001 (steel, blue teak dial, steel bracelet) vs Seiko Presage SSA425 Open Heart
Omega's chronograph meets Seiko's timepiece
Quick Verdict
The Seiko Presage SSA425 Open Heart ($250–$500) delivers Seiko In-House Automatic technology in the tier below the Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer 41mm 220.10.41.21.03.001 (steel, blue teak dial, steel bracelet) ($5,000–$10,000). The Presage SSA425 Open Heart measures 40.5mm and is rated 50m (5 ATM). The Seamaster Aqua Terra 150M Co-Axial Master Chronometer 41mm 220.10.41.21.03.001 (steel, blue teak dial, steel bracelet) justifies its premium with Swiss Made heritage and Omega Co-Axial Master Chronometer calibre 8900, automatic, METAS certified. Both represent excellent choices in the luxury watch category.
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Omega
Seamaster Aqua Terra 150M Co-Axial Master Chronometer 41mm 220.10.41.21.03.001 (steel, blue teak dial, steel bracelet)
$5,000–$10,000
Specifications Compared
| Feature | Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer 41mm 220.10.41.21.03.001 (steel, blue teak dial, steel bracelet) | Seiko Presage SSA425 Open Heart |
|---|---|---|
| Price | $5,000–$10,000 | $250–$500 |
| Case Size | 41mm, 13.2mm thick, 47.9mm lug to lug, 20mm lugs | 40.5mm |
| Movement | Omega Co-Axial Master Chronometer calibre 8900, automatic, METAS certified | Automatic Caliber 4R38 |
| Caliber Type | Omega 8900, Master Chronometer | Seiko In-House Automatic |
| Power Reserve | About 60 hours | 41 Hours |
| Water Resistance | 150m (15 bar) | 50m (5 ATM) |
| Crystal | Domed sapphire, anti-reflective both sides | Hardlex Crystal |
| Case Material | Stainless steel, symmetrical case with wave-edged caseback, sapphire caseback | Stainless Steel |
| Origin | Swiss Made | Made in Japan |
Category-by-Category Analysis
Design & Aesthetics
Omega's design language vs Seiko's approach
The Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer 41mm 220.10.41.21.03.001 (steel, blue teak dial, steel bracelet) features a Stainless steel, symmetrical case with wave-edged caseback, sapphire caseback case at 41mm, 13.2mm thick, 47.9mm lug to lug, 20mm lugs with Domed sapphire, anti-reflective both sides protection. The Seiko Presage SSA425 Open Heart offers Stainless Steel construction at 40.5mm with Hardlex Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Omega Co-Axial Master Chronometer calibre 8900, automatic, METAS certified vs Automatic Caliber 4R38
The Seamaster Aqua Terra 150M Co-Axial Master Chronometer 41mm 220.10.41.21.03.001 (steel, blue teak dial, steel bracelet) runs the Omega Co-Axial Master Chronometer calibre 8900, automatic, METAS certified (Omega 8900, Master Chronometer, About 60 hours power reserve) at standard frequency. The Presage SSA425 Open Heart uses the Automatic Caliber 4R38 (Seiko In-House Automatic, 41 Hours reserve) at 21,600 vph (3 Hz). The Seamaster Aqua Terra 150M Co-Axial Master Chronometer 41mm 220.10.41.21.03.001 (steel, blue teak dial, steel bracelet) edges ahead on power reserve.
Wearability & Fit
41mm, 13.2mm thick, 47.9mm lug to lug, 20mm lugs vs 40.5mm — different wrist presence
At 41mm, 13.2mm thick, 47.9mm lug to lug, 20mm lugs, the Seamaster Aqua Terra 150M Co-Axial Master Chronometer 41mm 220.10.41.21.03.001 (steel, blue teak dial, steel bracelet) has a bolder wrist presence compared to the Presage SSA425 Open Heart at 40.5mm. Water resistance differs: 150m (15 bar) vs 50m (5 ATM).
Value & Cost of Ownership
Seiko sits in the lower tier
The Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer 41mm 220.10.41.21.03.001 (steel, blue teak dial, steel bracelet) sits at $5,000–$10,000 and the Seiko Presage SSA425 Open Heart at $250–$500. On the specs that outlast any price: the Seamaster Aqua Terra 150M Co-Axial Master Chronometer 41mm 220.10.41.21.03.001 (steel, blue teak dial, steel bracelet) uses Domed sapphire, anti-reflective both sides with About 60 hours, against Hardlex Crystal and 41 Hours on the Presage SSA425 Open Heart. Service intervals are typically 5-7 years for both.
Water Resistance
150m (15 bar) vs 50m (5 ATM)
The Seamaster Aqua Terra 150M Co-Axial Master Chronometer 41mm 220.10.41.21.03.001 (steel, blue teak dial, steel bracelet) is rated to 150m (15 bar) while the Presage SSA425 Open Heart handles 50m (5 ATM). The Seamaster Aqua Terra 150M Co-Axial Master Chronometer 41mm 220.10.41.21.03.001 (steel, blue teak dial, steel bracelet) is better suited for water activities.
Our Verdict
Omega
Seamaster Aqua Terra 150M Co-Axial Master Chronometer 41mm 220.10.41.21.03.001 (steel, blue teak dial, steel bracelet)
Choose the Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer 41mm 220.10.41.21.03.001 (steel, blue teak dial, steel bracelet) if you prioritize Omega 8900, Master Chronometer engineering, Swiss Made craftsmanship, and 150m (15 bar) water resistance. At $5,000–$10,000, it delivers Omega Co-Axial Master Chronometer calibre 8900, automatic, METAS certified with About 60 hours power reserve.
Check Price on AmazonSeiko
Presage SSA425 Open Heart
Choose the Seiko Presage SSA425 Open Heart if you value Seiko In-House Automatic technology, Made in Japan heritage, and 40.5mm proportions. At $250–$500, the Automatic Caliber 4R38 with 41 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer 41mm 220.10.41.21.03.001 (steel, blue teak dial, steel bracelet) and Seiko Presage SSA425 Open Heart represent two distinct approaches to fine watchmaking — the Omega bringing Swiss Made tradition while Seiko delivers Made in Japan engineering.
Frequently Asked Questions
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How This Page Was Made
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