Tissot PRX Powermatic 80 vs Seiko Prospex Samurai SRPF03
Tissot's timepiece meets Seiko's diver
Quick Verdict
The Seiko Prospex Samurai SRPF03 ($250–$500) delivers Seiko Automatic, hand-winding and hacking technology in the tier below the Tissot PRX Powermatic 80 ($500–$1,000). The Prospex Samurai SRPF03 measures 43.8mm and is rated 200m (20 ATM). The PRX Powermatic 80 justifies its premium with Swiss Made heritage and Automatic Powermatic 80.111. 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.
Specifications Compared
| Feature | Tissot PRX Powermatic 80 | Seiko Prospex Samurai SRPF03 |
|---|---|---|
| Price | $500–$1,000 | $250–$500 |
| Case Size | 40mm | 43.8mm |
| Movement | Automatic Powermatic 80.111 | Automatic Caliber 4R35 |
| Caliber Type | In-House Automatic (ETA C07.111 base) | Seiko Automatic, hand-winding and hacking |
| Power Reserve | 80 Hours | 41 Hours |
| Water Resistance | 100m (10 ATM) | 200m (20 ATM) |
| Crystal | Scratch-resistant Sapphire | Hardlex Crystal |
| Case Material | 316L Stainless Steel | Stainless Steel |
| Origin | Swiss Made | Japanese Movement |
Category-by-Category Analysis
Design & Aesthetics
Tissot's design language vs Seiko's approach
The Tissot PRX Powermatic 80 features a 316L Stainless Steel case at 40mm with Scratch-resistant Sapphire protection. The Seiko Prospex Samurai SRPF03 offers Stainless Steel construction at 43.8mm with Hardlex Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic Powermatic 80.111 vs Automatic Caliber 4R35
The PRX Powermatic 80 runs the Automatic Powermatic 80.111 (In-House Automatic (ETA C07.111 base), 80 Hours power reserve) at 21,600 vph (3 Hz) frequency. The Prospex Samurai SRPF03 uses the Automatic Caliber 4R35 (Seiko Automatic, hand-winding and hacking, 41 Hours reserve) at 21,600 vph (3 Hz). The PRX Powermatic 80 edges ahead on power reserve.
Wearability & Fit
40mm vs 43.8mm — different wrist presence
At 40mm, the PRX Powermatic 80 wears more compactly on smaller wrists compared to the Prospex Samurai SRPF03 at 43.8mm. Water resistance differs: 100m (10 ATM) vs 200m (20 ATM).
Value & Cost of Ownership
Seiko sits in the lower tier
The Tissot PRX Powermatic 80 sits at $500–$1,000 and the Seiko Prospex Samurai SRPF03 at $250–$500. On the specs that outlast any price: the PRX Powermatic 80 uses Scratch-resistant Sapphire with 80 Hours, against Hardlex Crystal and 41 Hours on the Prospex Samurai SRPF03. Service intervals are typically 5-7 years for both.
Water Resistance
100m (10 ATM) vs 200m (20 ATM)
The PRX Powermatic 80 is rated to 100m (10 ATM) while the Prospex Samurai SRPF03 handles 200m (20 ATM). The Prospex Samurai SRPF03 offers superior water resistance.
Our Verdict
Tissot
PRX Powermatic 80
Choose the Tissot PRX Powermatic 80 if you prioritize In-House Automatic (ETA C07.111 base) engineering, Swiss Made craftsmanship, and 100m (10 ATM) water resistance. At $500–$1,000, it delivers Automatic Powermatic 80.111 with 80 Hours power reserve.
Check Price on AmazonSeiko
Prospex Samurai SRPF03
Choose the Seiko Prospex Samurai SRPF03 if you value Seiko Automatic, hand-winding and hacking technology, Japanese Movement heritage, and 43.8mm proportions. At $250–$500, the Automatic Caliber 4R35 with 41 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Tissot PRX Powermatic 80 and Seiko Prospex Samurai SRPF03 represent two distinct approaches to fine watchmaking — the Tissot bringing Swiss Made tradition while Seiko delivers Japanese Movement engineering.
Frequently Asked Questions
More Comparisons
Tissot PRX vs Hamilton Khaki Field
Integrated bracelet sophistication meets military heritage
Tag Heuer Carrera Chronograph vs Tissot PRX Powermatic 80
Tag Heuer's chronograph meets Tissot's timepiece
Tag Heuer Carrera Chronograph vs Seiko Prospex Samurai SRPF03
Tag Heuer's chronograph meets Seiko'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.