Casio Pro Trek PRG340-1 vs Rado True Square Automatic
Two timepieces compared — $150–$250 vs $1,500–$2,500
Quick Verdict
The Casio Pro Trek PRG340-1 ($150–$250) offers Tough Solar Quartz (No Battery Change) precision in the tier below the Rado True Square Automatic ($1,500–$2,500). The Pro Trek PRG340-1 measures 54.7 × 51.7 × 15.1mm and is rated 100m (10 ATM). The True Square Automatic counters with Swiss Made craftsmanship and 50m (5 ATM) water resistance. Both are exceptional timepieces for their respective tiers.
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Specifications Compared
| Feature | Casio Pro Trek PRG340-1 | Rado True Square Automatic |
|---|---|---|
| Price | $150–$250 | $1,500–$2,500 |
| Case Size | 54.7 × 51.7 × 15.1mm | 38mm (Square) |
| Movement | Tough Solar (Solar Quartz) | Automatic ETA C07.611 |
| Caliber Type | Tough Solar Quartz (No Battery Change) | Powermatic 80 (ETA-Based) |
| Power Reserve | Tough Solar (Rechargeable) | 80 Hours |
| Water Resistance | 100m (10 ATM) | 50m (5 ATM) |
| Crystal | Mineral Glass | Sapphire (Anti-Reflective) |
| Case Material | Bio-Based Resin | Monobloc High-Tech Ceramic |
| Origin | Casio (Japan) | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Casio's design language vs Rado's approach
The Casio Pro Trek PRG340-1 features a Bio-Based Resin case at 54.7 × 51.7 × 15.1mm with Mineral Glass protection. The Rado True Square Automatic offers Monobloc High-Tech Ceramic construction at 38mm (Square) with Sapphire (Anti-Reflective). Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Tough Solar (Solar Quartz) vs Automatic ETA C07.611
The Pro Trek PRG340-1 runs the Tough Solar (Solar Quartz) (Tough Solar Quartz (No Battery Change), Tough Solar (Rechargeable) power reserve) at standard frequency. The True Square Automatic uses the Automatic ETA C07.611 (Powermatic 80 (ETA-Based), 80 Hours reserve) at 21,600 vph (3 Hz). The True Square Automatic offers a longer power reserve.
Wearability & Fit
54.7 × 51.7 × 15.1mm vs 38mm (Square) — different wrist presence
At 54.7 × 51.7 × 15.1mm, the Pro Trek PRG340-1 has a bolder wrist presence compared to the True Square Automatic at 38mm (Square). Water resistance differs: 100m (10 ATM) vs 50m (5 ATM).
Value & Cost of Ownership
Casio sits in the lower tier
The Casio Pro Trek PRG340-1 sits at $150–$250 and the Rado True Square Automatic at $1,500–$2,500. On the specs that outlast any price: the Pro Trek PRG340-1 uses Mineral Glass with Tough Solar (Rechargeable), against Sapphire (Anti-Reflective) and 80 Hours on the True Square Automatic. Service intervals are typically 5-7 years for both.
Water Resistance
100m (10 ATM) vs 50m (5 ATM)
The Pro Trek PRG340-1 is rated to 100m (10 ATM) while the True Square Automatic handles 50m (5 ATM). The Pro Trek PRG340-1 is better suited for water activities.
Our Verdict
Casio
Pro Trek PRG340-1
Choose the Casio Pro Trek PRG340-1 if you prioritize Tough Solar Quartz (No Battery Change) engineering, Casio (Japan) craftsmanship, and 100m (10 ATM) water resistance. At $150–$250, it delivers Tough Solar (Solar Quartz) with Tough Solar (Rechargeable) 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 $1,500–$2,500, the Automatic ETA C07.611 with 80 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Casio Pro Trek PRG340-1 and Rado True Square Automatic represent two distinct approaches to the timepiece category — the Casio bringing Casio (Japan) tradition while Rado 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.