Casio Pro Trek PRG340-1 vs Citizen Blue Angels Navihawk 40mm
Casio's timepiece meets Citizen's chronograph
Quick Verdict
The Casio Pro Trek PRG340-1 ($150–$250) offers Tough Solar Quartz (No Battery Change) precision in the tier below the Citizen Blue Angels Navihawk 40mm ($250–$500). The Pro Trek PRG340-1 measures 54.7 × 51.7 × 15.1mm and is rated 100m (10 ATM). The Blue Angels Navihawk 40mm counters with Citizen (Japan) craftsmanship and robust water resistance. Both are exceptional watches for their respective tiers.
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Specifications Compared
| Feature | Casio Pro Trek PRG340-1 | Citizen Blue Angels Navihawk 40mm |
|---|---|---|
| Price | $150–$250 | $250–$500 |
| Case Size | 54.7 × 51.7 × 15.1mm | 40mm |
| Movement | Tough Solar (Solar Quartz) | Eco-Drive Chronograph |
| Caliber Type | Tough Solar Quartz (No Battery Change) | Citizen Eco-Drive Caliber B620 |
| Power Reserve | Tough Solar (Rechargeable) | — |
| Water Resistance | 100m (10 ATM) | — |
| Crystal | Mineral Glass | Anti-reflective sapphire |
| Case Material | Bio-Based Resin | Stainless Steel |
| Origin | Casio (Japan) | Citizen (Japan) |
Category-by-Category Analysis
Design & Aesthetics
Casio's design language vs Citizen'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 Citizen Blue Angels Navihawk 40mm offers Stainless Steel construction at 40mm with Anti-reflective sapphire. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Tough Solar (Solar Quartz) vs Eco-Drive Chronograph
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 Blue Angels Navihawk 40mm uses the Eco-Drive Chronograph (Citizen Eco-Drive Caliber B620, standard reserve) at standard. Power reserves are closely matched.
Wearability & Fit
54.7 × 51.7 × 15.1mm vs 40mm — different wrist presence
At 54.7 × 51.7 × 15.1mm, the Pro Trek PRG340-1 has a bolder wrist presence compared to the Blue Angels Navihawk 40mm at 40mm. Water resistance differs: 100m (10 ATM) vs 50m.
Value & Cost of Ownership
Casio sits in the lower tier
The Casio Pro Trek PRG340-1 sits at $150–$250 and the Citizen Blue Angels Navihawk 40mm at $250–$500. On the specs that outlast any price: the Pro Trek PRG340-1 uses Mineral Glass with Tough Solar (Rechargeable), against Anti-reflective sapphire and a standard reserve on the Blue Angels Navihawk 40mm. Service intervals are typically 5-7 years for both.
Water Resistance
100m (10 ATM) vs 50m
The Pro Trek PRG340-1 is rated to 100m (10 ATM) while the Blue Angels Navihawk 40mm handles 50m. 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 AmazonCitizen
Blue Angels Navihawk 40mm
Choose the Citizen Blue Angels Navihawk 40mm if you value Citizen Eco-Drive Caliber B620 technology, Citizen (Japan) heritage, and 40mm proportions. At $250–$500, the Eco-Drive Chronograph with ample power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Casio Pro Trek PRG340-1 and Citizen Blue Angels Navihawk 40mm represent two distinct approaches to fine watchmaking — the Casio bringing Casio (Japan) tradition while Citizen delivers Citizen (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.