Rado True Square Automatic vs Seiko Prospex Samurai SRPL13
Rado's timepiece meets Seiko's diver
Quick Verdict
The Seiko Prospex Samurai SRPL13 (~$590) delivers Seiko In-House Automatic technology at $1,860 less than the Rado True Square Automatic (~$2,450). The True Square Automatic justifies its premium with Swiss Made heritage and Automatic ETA C07.611. 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 | Rado True Square Automatic | Seiko Prospex Samurai SRPL13 |
|---|---|---|
| Price | ~$2,450 | ~$590 |
| Case Size | 38mm (Square) | 43.8mm |
| Movement | Automatic ETA C07.611 | Automatic Caliber 4R35 |
| Caliber Type | Powermatic 80 (ETA-Based) | Seiko In-House Automatic |
| Power Reserve | 80 Hours | 41 Hours |
| Water Resistance | 50m (5 ATM) | 200m (20 ATM) |
| Crystal | Sapphire (Anti-Reflective) | Hardlex Crystal |
| Case Material | Monobloc High-Tech Ceramic | Stainless Steel |
| Origin | Swiss Made | Made in Japan |
Category-by-Category Analysis
Design & Aesthetics
Rado's design language vs Seiko's approach
Movement & Performance
Automatic ETA C07.611 vs Automatic Caliber 4R35
Wearability & Fit
38mm (Square) vs 43.8mm — different wrist presence
Value & Cost of Ownership
Seiko is $1,860 more affordable
Water Resistance
50m (5 ATM) vs 200m (20 ATM)
Our Verdict
Rado
True Square Automatic
Choose the Rado True Square Automatic if you prioritize Powermatic 80 (ETA-Based) engineering, Swiss Made craftsmanship, and 50m (5 ATM) water resistance. At ~$2,450, it delivers Automatic ETA C07.611 with 80 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 43.8mm proportions. At ~$590, the Automatic Caliber 4R35 with 41 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Rado True Square Automatic and Seiko Prospex Samurai SRPL13 represent two distinct approaches to fine watchmaking — the Rado bringing Swiss Made tradition while Seiko delivers Made in Japan engineering.
Frequently Asked Questions
More Comparisons
Tag Heuer Carrera Chronograph vs Rado True Square Automatic
Tag Heuer's chronograph meets Rado's timepiece
Tag Heuer Carrera Chronograph vs Seiko Prospex Samurai SRPL13
Tag Heuer's chronograph meets Seiko's diver
Tissot PRX Powermatic 80 vs Rado True Square Automatic
Two timepieces compared — ~$850 vs ~$2,450

