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Omega Seamaster Diver 300M Co-Axial 41mm (steel, black dial, ceramic bezel, bracelet) vs Orient Kamasu Automatic Diver
Two divers compared — $5,000–$10,000 vs $250–$500
Quick Verdict
The Orient Kamasu Automatic Diver ($250–$500) delivers Orient In-House Automatic technology in the tier below the Omega Seamaster Diver 300M Co-Axial 41mm (steel, black dial, ceramic bezel, bracelet) ($5,000–$10,000). The Kamasu Automatic Diver measures 41.8mm 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.
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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 Kamasu Automatic Diver |
|---|---|---|
| Price | $5,000–$10,000 | $250–$500 |
| Case Size | 41mm, 13mm thick | 41.8mm |
| Movement | Automatic, Omega Co-Axial calibre 2500 (per the reference family the photograph matches; ask to confirm) | Automatic Caliber F6922 |
| Caliber Type | Omega Co-Axial 2500, chronometer | Orient In-House Automatic |
| 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 Kamasu Automatic Diver offers Stainless Steel construction at 41.8mm 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 F6922
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 Kamasu Automatic Diver uses the Automatic Caliber F6922 (Orient In-House Automatic, 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 41.8mm — different wrist presence
At 41mm, 13mm thick, the Seamaster Diver 300M Co-Axial 41mm (steel, black dial, ceramic bezel, bracelet) wears more compactly on smaller wrists compared to the Kamasu Automatic Diver at 41.8mm. 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 Kamasu Automatic Diver 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 Kamasu Automatic Diver. 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 Kamasu Automatic Diver 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
Kamasu Automatic Diver
Choose the Orient Kamasu Automatic Diver if you value Orient In-House Automatic technology, Made in Japan heritage, and 41.8mm proportions. At $250–$500, the Automatic Caliber F6922 with 40 Hours power reserve makes it a compelling choice.
View the dossierThe Bottom Line
The Omega Seamaster Diver 300M Co-Axial 41mm (steel, black dial, ceramic bezel, bracelet) and Orient Kamasu Automatic Diver represent two distinct approaches to the diver category — 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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