Omega Speedmaster Professional vs Casio Pro Trek PRG601-1
Omega's chronograph meets Casio's timepiece
Quick Verdict
The Casio Pro Trek PRG601-1 ($250–$500) delivers Tough Solar Quartz (No Battery Change) technology in the tier below the Omega Speedmaster Professional ($5,000–$10,000). The Pro Trek PRG601-1 measures 51.6mm and is rated 100m (10 ATM). The Speedmaster Professional justifies its premium with Swiss Made heritage and Manual-Winding Caliber 3861. Both represent excellent choices in the luxury watch category.
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Specifications Compared
| Feature | Omega Speedmaster Professional | Casio Pro Trek PRG601-1 |
|---|---|---|
| Price | $5,000–$10,000 | $250–$500 |
| Case Size | 42mm | 51.6mm |
| Movement | Manual-Winding Caliber 3861 | Tough Solar (Solar Quartz) |
| Caliber Type | In-House Manual-Winding Manufacture (Co-Axial) | Tough Solar Quartz (No Battery Change) |
| Power Reserve | 50 Hours | 7 Months (Solar, Full Charge); 25 Months Power Save |
| Water Resistance | 50m (5 ATM) | 100m (10 ATM) |
| Crystal | Hesalite or Sapphire | Mineral Glass |
| Case Material | Stainless Steel | Bio-Based Resin / Stainless Steel |
| Origin | Swiss Made | Casio (Japan) |
Category-by-Category Analysis
Design & Aesthetics
Omega's design language vs Casio's approach
The Omega Speedmaster Professional features a Stainless Steel case at 42mm with Hesalite or Sapphire protection. The Casio Pro Trek PRG601-1 offers Bio-Based Resin / Stainless Steel construction at 51.6mm with Mineral Glass. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Manual-Winding Caliber 3861 vs Tough Solar (Solar Quartz)
The Speedmaster Professional runs the Manual-Winding Caliber 3861 (In-House Manual-Winding Manufacture (Co-Axial), 50 Hours power reserve) at 21,600 vph (3 Hz) frequency. The Pro Trek PRG601-1 uses the Tough Solar (Solar Quartz) (Tough Solar Quartz (No Battery Change), 7 Months (Solar, Full Charge); 25 Months Power Save reserve) at standard. The Speedmaster Professional edges ahead on power reserve.
Wearability & Fit
42mm vs 51.6mm — different wrist presence
At 42mm, the Speedmaster Professional wears more compactly on smaller wrists compared to the Pro Trek PRG601-1 at 51.6mm. Water resistance differs: 50m (5 ATM) vs 100m (10 ATM).
Value & Cost of Ownership
Casio sits in the lower tier
The Omega Speedmaster Professional sits at $5,000–$10,000 and the Casio Pro Trek PRG601-1 at $250–$500. On the specs that outlast any price: the Speedmaster Professional uses Hesalite or Sapphire with 50 Hours, against Mineral Glass and 7 Months (Solar, Full Charge); 25 Months Power Save on the Pro Trek PRG601-1. Service intervals are typically 5-7 years for both.
Water Resistance
50m (5 ATM) vs 100m (10 ATM)
The Speedmaster Professional is rated to 50m (5 ATM) while the Pro Trek PRG601-1 handles 100m (10 ATM). The Pro Trek PRG601-1 offers superior water resistance.
Our Verdict
Omega
Speedmaster Professional
Choose the Omega Speedmaster Professional if you prioritize In-House Manual-Winding Manufacture (Co-Axial) engineering, Swiss Made craftsmanship, and 50m (5 ATM) water resistance. At $5,000–$10,000, it delivers Manual-Winding Caliber 3861 with 50 Hours power reserve.
Check Price on AmazonCasio
Pro Trek PRG601-1
Choose the Casio Pro Trek PRG601-1 if you value Tough Solar Quartz (No Battery Change) technology, Casio (Japan) heritage, and 51.6mm proportions. At $250–$500, the Tough Solar (Solar Quartz) with 7 Months (Solar, Full Charge); 25 Months Power Save power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Omega Speedmaster Professional and Casio Pro Trek PRG601-1 represent two distinct approaches to fine watchmaking — the Omega bringing Swiss Made tradition while Casio delivers Casio (Japan) 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.