Head-to-Head Comparison

Updated September 5, 2026

Casio Duro MDV106 Black vs Casio MTP-S120L Solar Field

Casio's diver meets Casio's field watch

Quick Verdict

The Casio Duro MDV106 Black ($50–$100) offers Casio Quartz (Battery) precision in the tier below the Casio MTP-S120L Solar Field ($100–$150). The Duro MDV106 Black measures 44mm and is rated 200m (20 ATM) Diver. The MTP-S120L Solar Field counters with Casio (Japan) craftsmanship and 100m (10 ATM) water resistance. Both are exceptional watches for their respective tiers.

CasioDuro MDV106 Black$50–$100 Check price CasioMTP-S120L Solar Field$100–$150 Check price

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Casio

Duro MDV106 Black

$50–$100

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Casio

MTP-S120L Solar Field

$100–$150

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Specifications Compared

Feature	Casio Duro MDV106 Black	Casio MTP-S120L Solar Field
Price	$50–$100	$100–$150
Case Size	44mm	42mm (49 x 42 x 10.9mm)
Movement	Quartz Module 2784	Solar-Powered Quartz
Caliber Type	Casio Quartz (Battery)	Casio Tough Solar Quartz
Power Reserve	3-Year Battery	Months on a full solar charge; no battery replacement
Water Resistance	200m (20 ATM) Diver	100m (10 ATM)
Crystal	Mineral Glass	Mineral Crystal
Case Material	Stainless Steel	Stainless Steel
Origin	Casio (Japan)	Casio (Japan)

Category-by-Category Analysis

🎨

Design & Aesthetics

Edge: Draw

Casio's design language vs Casio's approach

The Casio Duro MDV106 Black features a Stainless Steel case at 44mm with Mineral Glass protection. The Casio MTP-S120L Solar Field offers Stainless Steel construction at 42mm (49 x 42 x 10.9mm) with Mineral Crystal. Both represent their brand's distinct design philosophy and heritage.

⚙️

Movement & Performance

Edge: Casio

Quartz Module 2784 vs Solar-Powered Quartz

The Duro MDV106 Black runs the Quartz Module 2784 (Casio Quartz (Battery), 3-Year Battery power reserve) at standard frequency. The MTP-S120L Solar Field uses the Solar-Powered Quartz (Casio Tough Solar Quartz, Months on a full solar charge; no battery replacement reserve) at standard. The Duro MDV106 Black edges ahead on power reserve.

📏

Wearability & Fit

Edge: Casio

44mm vs 42mm (49 x 42 x 10.9mm) — different wrist presence

At 44mm, the Duro MDV106 Black has a bolder wrist presence compared to the MTP-S120L Solar Field at 42mm (49 x 42 x 10.9mm). Water resistance differs: 200m (20 ATM) Diver vs 100m (10 ATM).

💰

Value & Cost of Ownership

Edge: Casio

Casio sits in the lower tier

The Casio Duro MDV106 Black sits at $50–$100 and the Casio MTP-S120L Solar Field at $100–$150. On the specs that outlast any price: the Duro MDV106 Black uses Mineral Glass with 3-Year Battery, against Mineral Crystal and Months on a full solar charge; no battery replacement on the MTP-S120L Solar Field. Service intervals are typically 5-7 years for both.

💧

Water Resistance

Edge: Casio

200m (20 ATM) Diver vs 100m (10 ATM)

The Duro MDV106 Black is rated to 200m (20 ATM) Diver while the MTP-S120L Solar Field handles 100m (10 ATM). The Duro MDV106 Black is better suited for water activities.

Our Verdict

Casio

Duro MDV106 Black

Choose the Casio Duro MDV106 Black if you prioritize Casio Quartz (Battery) engineering, Casio (Japan) craftsmanship, and 200m (20 ATM) Diver water resistance. At $50–$100, it delivers Quartz Module 2784 with 3-Year Battery power reserve.

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Casio

MTP-S120L Solar Field

Choose the Casio MTP-S120L Solar Field if you value Casio Tough Solar Quartz technology, Casio (Japan) heritage, and 42mm (49 x 42 x 10.9mm) proportions. At $100–$150, the Solar-Powered Quartz with Months on a full solar charge; no battery replacement power reserve makes it a compelling choice.

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The Bottom Line

The Casio Duro MDV106 Black and Casio MTP-S120L Solar Field represent two distinct approaches to fine watchmaking — the Casio bringing Casio (Japan) tradition while Casio delivers Casio (Japan) engineering.

Frequently Asked Questions

For water, the Casio Duro MDV106 Black is rated 200 m against 100 m, which is the difference between swimming and diving on one side and splashes on the other. On price, the Casio Duro MDV106 Black sits a band lower ($50–$100 against $100–$150), so it is the cheaper way into the category. Neither is better at everything; the spec table above shows movement, case size, water resistance and crystal side by side so you can weigh what matters to you. We do not test units, so this is the makers' data, not a bench result.

The Casio Duro MDV106 Black offers better upfront value, sitting a tier lower at $50–$100. However, the Casio MTP-S120L Solar Field may justify its premium with superior finishing, heritage, or resale value.

Both are suitable for daily wear. The Duro MDV106 Black at 44mm with 200m (20 ATM) Diver water resistance handles everyday situations. The MTP-S120L Solar Field at 42mm (49 x 42 x 10.9mm) with 100m (10 ATM) is similarly capable. The Duro MDV106 Black uses Mineral Glass while the MTP-S120L Solar Field uses Mineral Crystal.

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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.