Updated
Omega Seamaster Diver 300M Co-Axial 41mm (steel, black dial, ceramic bezel, bracelet) vs Orient Mako 40 Green
Two divers compared — $5,000–$10,000 vs $250–$500
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 41mm (steel, black dial, ceramic bezel, bracelet) ($5,000–$10,000). The Mako 40 Green measures 40mm and is rated 200m (20 ATM). The Seamaster Diver 300M Co-Axial 41mm (steel, black dial, ceramic bezel, bracelet) justifies its premium with Swiss Made heritage and Automatic, Omega Co-Axial calibre 2500 (per the reference family the photograph matches; ask to confirm). Both represent excellent choices in the diver category.
Transparency — We earn a small commission on purchases made through our Amazon links. This doesn't affect our editorial independence.
Omega
Seamaster Diver 300M Co-Axial 41mm (steel, black dial, ceramic bezel, bracelet)
$5,000–$10,000
Specifications Compared
| Feature | Omega Seamaster Diver 300M Co-Axial 41mm (steel, black dial, ceramic bezel, bracelet) | Orient Mako 40 Green |
|---|---|---|
| Price | $5,000–$10,000 | $250–$500 |
| Case Size | 41mm, 13mm thick | 40mm |
| Movement | Automatic, Omega Co-Axial calibre 2500 (per the reference family the photograph matches; ask to confirm) | Automatic Caliber F6722 |
| Caliber Type | Omega Co-Axial 2500, chronometer | Orient In-House Automatic (Hacking, Hand-Winding) |
| Power Reserve | About 48 hours | 40 Hours |
| Water Resistance | 300m (30 ATM) | 200m (20 ATM) |
| Crystal | Sapphire Crystal | Sapphire Crystal |
| Case Material | Stainless steel, unidirectional ceramic bezel, helium escape valve | 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 41mm (steel, black dial, ceramic bezel, bracelet) features a Stainless steel, unidirectional ceramic bezel, helium escape valve case at 41mm, 13mm thick 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 calibre 2500 (per the reference family the photograph matches; ask to confirm) vs Automatic Caliber F6722
The Seamaster Diver 300M Co-Axial 41mm (steel, black dial, ceramic bezel, bracelet) runs the Automatic, Omega Co-Axial calibre 2500 (per the reference family the photograph matches; ask to confirm) (Omega Co-Axial 2500, chronometer, About 48 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 41mm (steel, black dial, ceramic bezel, bracelet) edges ahead on power reserve.
Wearability & Fit
41mm, 13mm thick vs 40mm — different wrist presence
At 41mm, 13mm thick, the Seamaster Diver 300M Co-Axial 41mm (steel, black dial, ceramic bezel, 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 41mm (steel, black dial, ceramic bezel, bracelet) sits at $5,000–$10,000 and the Orient Mako 40 Green at $250–$500. On the specs that outlast any price: the Seamaster Diver 300M Co-Axial 41mm (steel, black dial, ceramic bezel, bracelet) uses Sapphire Crystal with About 48 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 41mm (steel, black dial, ceramic bezel, bracelet) is rated to 300m (30 ATM) while the Mako 40 Green handles 200m (20 ATM). The Seamaster Diver 300M Co-Axial 41mm (steel, black dial, ceramic bezel, bracelet) is better suited for water activities.
Our Verdict
Omega
Seamaster Diver 300M Co-Axial 41mm (steel, black dial, ceramic bezel, bracelet)
Choose the Omega Seamaster Diver 300M Co-Axial 41mm (steel, black dial, ceramic bezel, bracelet) if you prioritize Omega Co-Axial 2500, chronometer engineering, Swiss Made craftsmanship, and 300m (30 ATM) water resistance. At $5,000–$10,000, it delivers Automatic, Omega Co-Axial calibre 2500 (per the reference family the photograph matches; ask to confirm) with About 48 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 41mm (steel, black dial, ceramic bezel, bracelet) and Orient Mako 40 Green represent two distinct approaches to the diver category — the Omega bringing Swiss Made tradition while Orient delivers Made in Japan engineering.
Frequently Asked Questions
More Comparisons
Tag Heuer Carrera Chronograph vs Omega Seamaster Diver 300M Co-Axial 41mm (steel, black dial, ceramic bezel, bracelet)
Tag Heuer's chronograph meets Omega's diver
Tag Heuer Carrera Chronograph vs Orient Mako 40 Green
Tag Heuer's chronograph meets Orient's diver
Tissot PRX Powermatic 80 vs Omega Seamaster Diver 300M Co-Axial 41mm (steel, black dial, ceramic bezel, bracelet)
Tissot's timepiece meets Omega's diver
Explore These Watches
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.