Head-to-Head Comparison

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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Casio MTP-S120L Solar Field

Casio

MTP-S120L Solar Field

$100–$150

Citizen Blue Angels Navihawk 40mm

Citizen

Blue Angels Navihawk 40mm

$250–$500

Specifications Compared

FeatureCasio MTP-S120L Solar FieldCitizen Blue Angels Navihawk 40mm
Price$100–$150$250–$500
Case Size44.5mm40mm
MovementSolar-Powered QuartzEco-Drive Chronograph
Caliber TypeCasio Tough Solar QuartzCitizen Eco-Drive Caliber B620
Power ReserveMonths on a full solar charge; no battery replacement
Water Resistance100m (10 ATM)
CrystalMineral CrystalAnti-reflective sapphire
Case MaterialStainless SteelStainless Steel
OriginCasio (Japan)Citizen (Japan)

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

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.

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Movement & Performance

Edge: Draw

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.

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Wearability & Fit

Edge: Citizen

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.

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Value & Cost of Ownership

Edge: Casio

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.

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Water Resistance

Edge: Casio

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.

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Citizen

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.

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The 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

Neither is objectively better — they serve different preferences. The Casio MTP-S120L Solar Field ($100–$150) offers Solar-Powered Quartz with Months on a full solar charge; no battery replacement power reserve, while the Citizen Blue Angels Navihawk 40mm ($250–$500) features Eco-Drive Chronograph with solid water resistance. Choose based on your priorities: Casio (Japan) craftsmanship vs Citizen (Japan) engineering.
The Casio MTP-S120L Solar Field offers better upfront value, sitting a tier lower at $100–$150. However, the Citizen Blue Angels Navihawk 40mm may justify its premium with superior finishing, heritage, or resale value.
Both are suitable for daily wear. The MTP-S120L Solar Field at 44.5mm with 100m (10 ATM) water resistance handles everyday situations. The Blue Angels Navihawk 40mm at 40mm with 50m is similarly capable. The MTP-S120L Solar Field uses Mineral Crystal while the Blue Angels Navihawk 40mm uses Anti-reflective sapphire. Sapphire resists scratches noticeably better than mineral glass.

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.