Updated
Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.20.42.20.03.002 (steel and Sedna gold, blue dial, bracelet) vs Orient Mako 40 Green
Omega's chronograph meets Orient's diver
Quick Verdict
The Orient Mako 40 Green ($250–$500) delivers Orient In-House Automatic (Hacking, Hand-Winding) technology in the tier below the Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.20.42.20.03.002 (steel and Sedna gold, blue dial, bracelet) ($10,000–$25,000). The Mako 40 Green measures 40mm and is rated 200m (20 ATM). The Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.20.42.20.03.002 (steel and Sedna gold, blue dial, bracelet) justifies its premium with Swiss Made heritage and Automatic, Omega Co-Axial Master Chronometer calibre 8800 (METAS). Both represent excellent choices in the luxury watch category.
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Omega
Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.20.42.20.03.002 (steel and Sedna gold, blue dial, bracelet)
$10,000–$25,000
Specifications Compared
| Feature | Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.20.42.20.03.002 (steel and Sedna gold, blue dial, bracelet) | Orient Mako 40 Green |
|---|---|---|
| Price | $10,000–$25,000 | $250–$500 |
| Case Size | 42mm, 11mm thick per the seller (Omega: 13.6mm) | 40mm |
| Movement | Automatic, Omega Co-Axial Master Chronometer calibre 8800 (METAS) | Automatic Caliber F6722 |
| Caliber Type | Omega 8800, Master Chronometer | Orient In-House Automatic (Hacking, Hand-Winding) |
| Power Reserve | About 55 hours | 40 Hours |
| Water Resistance | 300m (30 ATM) | 200m (20 ATM) |
| Crystal | Sapphire Crystal | Sapphire Crystal |
| Case Material | Stainless steel with an 18k Sedna gold unidirectional bezel and blue ceramic insert, helium escape valve, sapphire caseback | Stainless Steel |
| Origin | Swiss Made | Made in Japan |
Category-by-Category Analysis
Design & Aesthetics
Omega's design language vs Orient's approach
The Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.20.42.20.03.002 (steel and Sedna gold, blue dial, bracelet) features a Stainless steel with an 18k Sedna gold unidirectional bezel and blue ceramic insert, helium escape valve, sapphire caseback case at 42mm, 11mm thick per the seller (Omega: 13.6mm) with Sapphire Crystal protection. The Orient Mako 40 Green offers Stainless Steel construction at 40mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic, Omega Co-Axial Master Chronometer calibre 8800 (METAS) vs Automatic Caliber F6722
The Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.20.42.20.03.002 (steel and Sedna gold, blue dial, bracelet) runs the Automatic, Omega Co-Axial Master Chronometer calibre 8800 (METAS) (Omega 8800, Master Chronometer, About 55 hours power reserve) at standard frequency. The Mako 40 Green uses the Automatic Caliber F6722 (Orient In-House Automatic (Hacking, Hand-Winding), 40 Hours reserve) at 21,600 vph (3 Hz). The Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.20.42.20.03.002 (steel and Sedna gold, blue dial, bracelet) edges ahead on power reserve.
Wearability & Fit
42mm, 11mm thick per the seller (Omega: 13.6mm) vs 40mm — different wrist presence
At 42mm, 11mm thick per the seller (Omega: 13.6mm), the Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.20.42.20.03.002 (steel and Sedna gold, blue dial, bracelet) has a bolder wrist presence compared to the Mako 40 Green at 40mm. Water resistance differs: 300m (30 ATM) vs 200m (20 ATM).
Value & Cost of Ownership
Orient sits in the lower tier
The Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.20.42.20.03.002 (steel and Sedna gold, blue dial, bracelet) sits at $10,000–$25,000 and the Orient Mako 40 Green at $250–$500. On the specs that outlast any price: the Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.20.42.20.03.002 (steel and Sedna gold, blue dial, bracelet) uses Sapphire Crystal with About 55 hours, against Sapphire Crystal and 40 Hours on the Mako 40 Green. Service intervals are typically 5-7 years for both.
Water Resistance
300m (30 ATM) vs 200m (20 ATM)
The Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.20.42.20.03.002 (steel and Sedna gold, blue dial, bracelet) is rated to 300m (30 ATM) while the Mako 40 Green handles 200m (20 ATM). The Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.20.42.20.03.002 (steel and Sedna gold, blue dial, bracelet) is better suited for water activities.
Our Verdict
Omega
Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.20.42.20.03.002 (steel and Sedna gold, blue dial, bracelet)
Choose the Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.20.42.20.03.002 (steel and Sedna gold, blue dial, bracelet) if you prioritize Omega 8800, Master Chronometer engineering, Swiss Made craftsmanship, and 300m (30 ATM) water resistance. At $10,000–$25,000, it delivers Automatic, Omega Co-Axial Master Chronometer calibre 8800 (METAS) with About 55 hours power reserve.
Check Price on AmazonOrient
Mako 40 Green
Choose the Orient Mako 40 Green if you value Orient In-House Automatic (Hacking, Hand-Winding) technology, Made in Japan heritage, and 40mm proportions. At $250–$500, the Automatic Caliber F6722 with 40 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.20.42.20.03.002 (steel and Sedna gold, blue dial, bracelet) and Orient Mako 40 Green represent two distinct approaches to fine watchmaking — the Omega bringing Swiss Made tradition while Orient delivers Made in Japan engineering.
Frequently Asked Questions
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How This Page Was Made
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