Casio MTP-S120L Solar Field vs Citizen Blue Angels Navihawk 40mm
Casio's field watch meets Citizen's chronograph
Quick Verdict
The Casio MTP-S120L Solar Field ($100–$150) offers Casio Tough Solar Quartz precision in the tier below the Citizen Blue Angels Navihawk 40mm ($250–$500). The MTP-S120L Solar Field measures 44.5mm 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 MTP-S120L Solar Field | Citizen Blue Angels Navihawk 40mm |
|---|---|---|
| Price | $100–$150 | $250–$500 |
| Case Size | 44.5mm | 40mm |
| Movement | Solar-Powered Quartz | Eco-Drive Chronograph |
| Caliber Type | Casio Tough Solar Quartz | Citizen Eco-Drive Caliber B620 |
| Power Reserve | Months on a full solar charge; no battery replacement | — |
| Water Resistance | 100m (10 ATM) | — |
| Crystal | Mineral Crystal | Anti-reflective sapphire |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Casio (Japan) | Citizen (Japan) |
Category-by-Category Analysis
Design & Aesthetics
Casio's design language vs Citizen's approach
The Casio MTP-S120L Solar Field features a Stainless Steel case at 44.5mm with Mineral Crystal 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
Solar-Powered Quartz vs Eco-Drive Chronograph
The MTP-S120L Solar Field runs the Solar-Powered Quartz (Casio Tough Solar Quartz, Months on a full solar charge; no battery replacement 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
44.5mm vs 40mm — different wrist presence
At 44.5mm, the MTP-S120L Solar Field 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 MTP-S120L Solar Field sits at $100–$150 and the Citizen Blue Angels Navihawk 40mm at $250–$500. On the specs that outlast any price: the MTP-S120L Solar Field uses Mineral Crystal with Months on a full solar charge; no battery replacement, 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 MTP-S120L Solar Field is rated to 100m (10 ATM) while the Blue Angels Navihawk 40mm handles 50m. The MTP-S120L Solar Field is better suited for water activities.
Our Verdict
Casio
MTP-S120L Solar Field
Choose the Casio MTP-S120L Solar Field if you prioritize Casio Tough Solar Quartz engineering, Casio (Japan) craftsmanship, and 100m (10 ATM) water resistance. At $100–$150, it delivers Solar-Powered Quartz with Months on a full solar charge; no battery replacement 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 MTP-S120L Solar Field 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.

