Updated
Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.22.42.20.03.001 (steel and yellow gold, blue ceramic dial, blue rubber strap) vs Seiko Prospex Samurai SRPL13
Omega's chronograph meets Seiko's diver
Quick Verdict
The Seiko Prospex Samurai SRPL13 ($500–$1,000) delivers Seiko In-House Automatic technology in the tier below the Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.22.42.20.03.001 (steel and yellow gold, blue ceramic dial, blue rubber strap) ($5,000–$10,000). The Prospex Samurai SRPL13 measures 41.7mm and is rated 200m (20 ATM). The Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.22.42.20.03.001 (steel and yellow gold, blue ceramic dial, blue rubber strap) justifies its premium with Swiss Made heritage and Omega Co-Axial Master Chronometer calibre 8800, automatic, METAS certified. Both represent excellent choices in the luxury watch 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 Master Chronometer 42mm 210.22.42.20.03.001 (steel and yellow gold, blue ceramic dial, blue rubber strap)
$5,000–$10,000
Specifications Compared
| Feature | Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.22.42.20.03.001 (steel and yellow gold, blue ceramic dial, blue rubber strap) | Seiko Prospex Samurai SRPL13 |
|---|---|---|
| Price | $5,000–$10,000 | $500–$1,000 |
| Case Size | 42mm, 13.56mm thick, 49.9mm lug to lug, 20mm lugs | 41.7mm |
| Movement | Omega Co-Axial Master Chronometer calibre 8800, automatic, METAS certified | Automatic Caliber 4R35 |
| Caliber Type | Omega 8800, Master Chronometer | Seiko In-House Automatic |
| Power Reserve | About 55 hours | 41 Hours |
| Water Resistance | 300m (30 bar) | 200m (20 ATM) |
| Crystal | Domed sapphire, anti-reflective both sides | Hardlex Crystal |
| Case Material | Stainless steel with 18k yellow gold bezel ring and crown, unidirectional blue ceramic bezel with Ceragold diving scale, conical helium escape valve, screw-in crown, 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 Diver 300M Co-Axial Master Chronometer 42mm 210.22.42.20.03.001 (steel and yellow gold, blue ceramic dial, blue rubber strap) features a Stainless steel with 18k yellow gold bezel ring and crown, unidirectional blue ceramic bezel with Ceragold diving scale, conical helium escape valve, screw-in crown, sapphire caseback case at 42mm, 13.56mm thick, 49.9mm lug to lug, 20mm lugs with Domed sapphire, anti-reflective both sides protection. The Seiko Prospex Samurai SRPL13 offers Stainless Steel construction at 41.7mm with Hardlex Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Omega Co-Axial Master Chronometer calibre 8800, automatic, METAS certified vs Automatic Caliber 4R35
The Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.22.42.20.03.001 (steel and yellow gold, blue ceramic dial, blue rubber strap) runs the Omega Co-Axial Master Chronometer calibre 8800, automatic, METAS certified (Omega 8800, Master Chronometer, About 55 hours power reserve) at standard frequency. The Prospex Samurai SRPL13 uses the Automatic Caliber 4R35 (Seiko In-House Automatic, 41 Hours reserve) at 21,600 vph (3 Hz). The Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.22.42.20.03.001 (steel and yellow gold, blue ceramic dial, blue rubber strap) edges ahead on power reserve.
Wearability & Fit
42mm, 13.56mm thick, 49.9mm lug to lug, 20mm lugs vs 41.7mm — different wrist presence
At 42mm, 13.56mm thick, 49.9mm lug to lug, 20mm lugs, the Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.22.42.20.03.001 (steel and yellow gold, blue ceramic dial, blue rubber strap) has a bolder wrist presence compared to the Prospex Samurai SRPL13 at 41.7mm. Water resistance differs: 300m (30 bar) vs 200m (20 ATM).
Value & Cost of Ownership
Seiko sits in the lower tier
The Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.22.42.20.03.001 (steel and yellow gold, blue ceramic dial, blue rubber strap) sits at $5,000–$10,000 and the Seiko Prospex Samurai SRPL13 at $500–$1,000. On the specs that outlast any price: the Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.22.42.20.03.001 (steel and yellow gold, blue ceramic dial, blue rubber strap) uses Domed sapphire, anti-reflective both sides with About 55 hours, against Hardlex Crystal and 41 Hours on the Prospex Samurai SRPL13. Service intervals are typically 5-7 years for both.
Water Resistance
300m (30 bar) vs 200m (20 ATM)
The Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.22.42.20.03.001 (steel and yellow gold, blue ceramic dial, blue rubber strap) is rated to 300m (30 bar) while the Prospex Samurai SRPL13 handles 200m (20 ATM). The Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.22.42.20.03.001 (steel and yellow gold, blue ceramic dial, blue rubber strap) is better suited for water activities.
Our Verdict
Omega
Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.22.42.20.03.001 (steel and yellow gold, blue ceramic dial, blue rubber strap)
Choose the Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.22.42.20.03.001 (steel and yellow gold, blue ceramic dial, blue rubber strap) if you prioritize Omega 8800, Master Chronometer engineering, Swiss Made craftsmanship, and 300m (30 bar) water resistance. At $5,000–$10,000, it delivers Omega Co-Axial Master Chronometer calibre 8800, automatic, METAS certified with About 55 hours power reserve.
Check Price on AmazonSeiko
Prospex Samurai SRPL13
Choose the Seiko Prospex Samurai SRPL13 if you value Seiko In-House Automatic technology, Made in Japan heritage, and 41.7mm proportions. At $500–$1,000, the Automatic Caliber 4R35 with 41 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.22.42.20.03.001 (steel and yellow gold, blue ceramic dial, blue rubber strap) and Seiko Prospex Samurai SRPL13 represent two distinct approaches to fine watchmaking — the Omega bringing Swiss Made tradition while Seiko delivers Made in Japan engineering.
Frequently Asked Questions
More Comparisons
Tag Heuer Carrera Chronograph vs Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.22.42.20.03.001 (steel and yellow gold, blue ceramic dial, blue rubber strap)
Two chronographs compared — $2,500–$5,000 vs $5,000–$10,000
Tag Heuer Carrera Chronograph vs Seiko Prospex Samurai SRPL13
Tag Heuer's chronograph meets Seiko's diver
Tissot PRX Powermatic 80 vs Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.22.42.20.03.001 (steel and yellow gold, blue ceramic dial, blue rubber strap)
Tissot's timepiece meets Omega's chronograph
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.