Seiko Prospex "Turtle" vs Rado True Square Automatic
Seiko's diver meets Rado's timepiece
Quick Verdict
The Seiko Prospex "Turtle" (~$500) offers In-House Automatic Manufacture precision at $1,950 less than the Rado True Square Automatic (~$2,450). The True Square Automatic counters with Swiss Made craftsmanship and 50m (5 ATM) water resistance. Both are exceptional watches for their respective price points.
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Specifications Compared
| Feature | Seiko Prospex "Turtle" | Rado True Square Automatic |
|---|---|---|
| Price | ~$500 | ~$2,450 |
| Case Size | 45mm | 38mm (Square) |
| Movement | Automatic Caliber 4R36 | Automatic ETA C07.611 |
| Caliber Type | In-House Automatic Manufacture | Powermatic 80 (ETA-Based) |
| Power Reserve | 41 Hours | 80 Hours |
| Water Resistance | 200m (20 ATM) Diver | 50m (5 ATM) |
| Crystal | Sapphire Crystal | Sapphire (Anti-Reflective) |
| Case Material | Stainless Steel | Monobloc High-Tech Ceramic |
| Origin | Made in Japan | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Seiko's design language vs Rado's approach
Movement & Performance
Automatic Caliber 4R36 vs Automatic ETA C07.611
Wearability & Fit
45mm vs 38mm (Square) — different wrist presence
Value & Cost of Ownership
Seiko is $1,950 more affordable
Water Resistance
200m (20 ATM) Diver vs 50m (5 ATM)
Our Verdict
Seiko
Prospex "Turtle"
Choose the Seiko Prospex "Turtle" if you prioritize In-House Automatic Manufacture engineering, Made in Japan craftsmanship, and 200m (20 ATM) Diver water resistance. At ~$500, it delivers Automatic Caliber 4R36 with 41 Hours power reserve.
Check Price on AmazonRado
True Square Automatic
Choose the Rado True Square Automatic if you value Powermatic 80 (ETA-Based) technology, Swiss Made heritage, and 38mm (Square) proportions. At ~$2,450, the Automatic ETA C07.611 with 80 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Seiko Prospex "Turtle" and Rado True Square Automatic represent two distinct approaches to fine watchmaking — the Seiko bringing Made in Japan tradition while Rado delivers Swiss Made engineering.

