Breitling Navitimer B01 vs Casio Pro Trek PRG601-1
Breitling'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 Breitling Navitimer B01 ($10,000–$25,000). The Pro Trek PRG601-1 measures 51.6mm and is rated 100m (10 ATM). The Navitimer B01 justifies its premium with Swiss Made heritage and Automatic Breitling 01 (Manufacture). Both represent excellent choices in the luxury watch category.
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Specifications Compared
| Feature | Breitling Navitimer B01 | Casio Pro Trek PRG601-1 |
|---|---|---|
| Price | $10,000–$25,000 | $250–$500 |
| Case Size | 43mm | 51.6mm |
| Movement | Automatic Breitling 01 (Manufacture) | Tough Solar (Solar Quartz) |
| Caliber Type | In-House Automatic Chronograph Manufacture | Tough Solar Quartz (No Battery Change) |
| Power Reserve | 70 Hours | 7 Months (Solar, Full Charge); 25 Months Power Save |
| Water Resistance | 30m (3 ATM) | 100m (10 ATM) |
| Crystal | Cambered Sapphire | Mineral Glass |
| Case Material | Stainless Steel | Bio-Based Resin / Stainless Steel |
| Origin | Swiss Made | Casio (Japan) |
Category-by-Category Analysis
Design & Aesthetics
Breitling's design language vs Casio's approach
The Breitling Navitimer B01 features a Stainless Steel case at 43mm with Cambered 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
Automatic Breitling 01 (Manufacture) vs Tough Solar (Solar Quartz)
The Navitimer B01 runs the Automatic Breitling 01 (Manufacture) (In-House Automatic Chronograph Manufacture, 70 Hours power reserve) at 28,800 vph (4 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 Navitimer B01 edges ahead on power reserve.
Wearability & Fit
43mm vs 51.6mm — different wrist presence
At 43mm, the Navitimer B01 wears more compactly on smaller wrists compared to the Pro Trek PRG601-1 at 51.6mm. Water resistance differs: 30m (3 ATM) vs 100m (10 ATM).
Value & Cost of Ownership
Casio sits in the lower tier
The Breitling Navitimer B01 sits at $10,000–$25,000 and the Casio Pro Trek PRG601-1 at $250–$500. On the specs that outlast any price: the Navitimer B01 uses Cambered Sapphire with 70 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
30m (3 ATM) vs 100m (10 ATM)
The Navitimer B01 is rated to 30m (3 ATM) while the Pro Trek PRG601-1 handles 100m (10 ATM). The Pro Trek PRG601-1 offers superior water resistance.
Our Verdict
Breitling
Navitimer B01
Choose the Breitling Navitimer B01 if you prioritize In-House Automatic Chronograph Manufacture engineering, Swiss Made craftsmanship, and 30m (3 ATM) water resistance. At $10,000–$25,000, it delivers Automatic Breitling 01 (Manufacture) with 70 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 Breitling Navitimer B01 and Casio Pro Trek PRG601-1 represent two distinct approaches to fine watchmaking — the Breitling 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.