Updated
Seiko Prospex Samurai SRPL13 vs Tudor Black Bay Ceramic M79210CNU-0001 (black ceramic, black dial, hybrid strap)
Seiko's diver meets Tudor's chronograph
Quick Verdict
The Seiko Prospex Samurai SRPL13 ($500–$1,000) offers Seiko In-House Automatic precision in the tier below the Tudor Black Bay Ceramic M79210CNU-0001 (black ceramic, black dial, hybrid strap) ($5,000–$10,000). The Prospex Samurai SRPL13 measures 41.7mm and is rated 200m (20 ATM). The Black Bay Ceramic M79210CNU-0001 (black ceramic, black dial, hybrid strap) counters with Swiss Made craftsmanship and 200m (20 ATM) water resistance. Both are exceptional watches for their respective tiers.
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Tudor
Black Bay Ceramic M79210CNU-0001 (black ceramic, black dial, hybrid strap)
$5,000–$10,000
Specifications Compared
| Feature | Seiko Prospex Samurai SRPL13 | Tudor Black Bay Ceramic M79210CNU-0001 (black ceramic, black dial, hybrid strap) |
|---|---|---|
| Price | $500–$1,000 | $5,000–$10,000 |
| Case Size | 41.7mm | 41mm |
| Movement | Automatic Caliber 4R35 | Automatic, Tudor manufacture calibre MT5602-1U, Master Chronometer (METAS) |
| Caliber Type | Seiko In-House Automatic | MT5602-1U, Master Chronometer |
| Power Reserve | 41 Hours | About 70 hours |
| Water Resistance | 200m (20 ATM) | 200m (20 ATM) |
| Crystal | Hardlex Crystal | Sapphire Crystal |
| Case Material | Stainless Steel | Black ceramic, unidirectional bezel with black ceramic insert, steel caseback with sapphire window |
| Origin | Made in Japan | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Seiko's design language vs Tudor's approach
The Seiko Prospex Samurai SRPL13 features a Stainless Steel case at 41.7mm with Hardlex Crystal protection. The Tudor Black Bay Ceramic M79210CNU-0001 (black ceramic, black dial, hybrid strap) offers Black ceramic, unidirectional bezel with black ceramic insert, steel caseback with sapphire window construction at 41mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic Caliber 4R35 vs Automatic, Tudor manufacture calibre MT5602-1U, Master Chronometer (METAS)
The Prospex Samurai SRPL13 runs the Automatic Caliber 4R35 (Seiko In-House Automatic, 41 Hours power reserve) at 21,600 vph (3 Hz) frequency. The Black Bay Ceramic M79210CNU-0001 (black ceramic, black dial, hybrid strap) uses the Automatic, Tudor manufacture calibre MT5602-1U, Master Chronometer (METAS) (MT5602-1U, Master Chronometer, About 70 hours reserve) at standard. The Black Bay Ceramic M79210CNU-0001 (black ceramic, black dial, hybrid strap) offers a longer power reserve.
Wearability & Fit
41.7mm vs 41mm — different wrist presence
At 41.7mm, the Prospex Samurai SRPL13 has a bolder wrist presence compared to the Black Bay Ceramic M79210CNU-0001 (black ceramic, black dial, hybrid strap) at 41mm. Water resistance differs: 200m (20 ATM) vs 200m (20 ATM).
Value & Cost of Ownership
Seiko sits in the lower tier
The Seiko Prospex Samurai SRPL13 sits at $500–$1,000 and the Tudor Black Bay Ceramic M79210CNU-0001 (black ceramic, black dial, hybrid strap) at $5,000–$10,000. On the specs that outlast any price: the Prospex Samurai SRPL13 uses Hardlex Crystal with 41 Hours, against Sapphire Crystal and About 70 hours on the Black Bay Ceramic M79210CNU-0001 (black ceramic, black dial, hybrid strap). Service intervals are typically 5-7 years for both.
Water Resistance
200m (20 ATM) vs 200m (20 ATM)
The Prospex Samurai SRPL13 is rated to 200m (20 ATM) while the Black Bay Ceramic M79210CNU-0001 (black ceramic, black dial, hybrid strap) handles 200m (20 ATM). Both offer identical water resistance ratings.
Our Verdict
Seiko
Prospex Samurai SRPL13
Choose the Seiko Prospex Samurai SRPL13 if you prioritize Seiko In-House Automatic engineering, Made in Japan craftsmanship, and 200m (20 ATM) water resistance. At $500–$1,000, it delivers Automatic Caliber 4R35 with 41 Hours power reserve.
Check Price on AmazonTudor
Black Bay Ceramic M79210CNU-0001 (black ceramic, black dial, hybrid strap)
Choose the Tudor Black Bay Ceramic M79210CNU-0001 (black ceramic, black dial, hybrid strap) if you value MT5602-1U, Master Chronometer technology, Swiss Made heritage, and 41mm proportions. At $5,000–$10,000, the Automatic, Tudor manufacture calibre MT5602-1U, Master Chronometer (METAS) with About 70 hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Seiko Prospex Samurai SRPL13 and Tudor Black Bay Ceramic M79210CNU-0001 (black ceramic, black dial, hybrid strap) represent two distinct approaches to fine watchmaking — the Seiko bringing Made in Japan tradition while Tudor delivers Swiss Made engineering.
Frequently Asked Questions
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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.