Head-to-Head Comparison

Updated September 5, 2026

Citizen Tsuyosa Automatic vs Casio MRW-230H

Two timepieces compared — $250–$500 vs Under $50

Quick Verdict

The Casio MRW-230H (Under $50) delivers Casio Quartz (Battery) technology in the tier below the Citizen Tsuyosa Automatic ($250–$500). The MRW-230H measures 44.6mm (47.9 x 44.6 x 12.3mm) and is rated 100m (10 ATM). The Tsuyosa Automatic justifies its premium with Made in Japan heritage and Automatic Caliber 8210. Both represent excellent choices in the timepiece category.

CitizenTsuyosa Automatic$250–$500 Check price CasioMRW-230HUnder $50 Check price

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Citizen

Tsuyosa Automatic

$250–$500

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Casio

MRW-230H

Under $50

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Specifications Compared

Feature	Citizen Tsuyosa Automatic	Casio MRW-230H
Price	$250–$500	Under $50
Case Size	40mm	44.6mm (47.9 x 44.6 x 12.3mm)
Movement	Automatic Caliber 8210	Quartz
Caliber Type	Citizen/Miyota In-House Automatic	Casio Quartz (Battery)
Power Reserve	40 Hours	Approx. 3-year battery (SR626SW)
Water Resistance	50m (5 ATM)	100m (10 ATM)
Crystal	Sapphire Crystal with Cyclops	Resin Glass
Case Material	Stainless Steel	Resin case, aluminum bezel ring
Origin	Made in Japan	Casio (Japan)

Category-by-Category Analysis

🎨

Design & Aesthetics

Edge: Draw

Citizen's design language vs Casio's approach

The Citizen Tsuyosa Automatic features a Stainless Steel case at 40mm with Sapphire Crystal with Cyclops protection. The Casio MRW-230H offers Resin case, aluminum bezel ring construction at 44.6mm (47.9 x 44.6 x 12.3mm) with Resin Glass. Both represent their brand's distinct design philosophy and heritage.

⚙️

Movement & Performance

Edge: Casio

Automatic Caliber 8210 vs Quartz

The Tsuyosa Automatic runs the Automatic Caliber 8210 (Citizen/Miyota In-House Automatic, 40 Hours power reserve) at 21,600 vph (3 Hz) frequency. The MRW-230H uses the Quartz (Casio Quartz (Battery), Approx. 3-year battery (SR626SW) reserve) at standard. The MRW-230H offers a longer power reserve.

📏

Wearability & Fit

Edge: Citizen

40mm vs 44.6mm (47.9 x 44.6 x 12.3mm) — different wrist presence

At 40mm, the Tsuyosa Automatic wears more compactly on smaller wrists compared to the MRW-230H at 44.6mm (47.9 x 44.6 x 12.3mm). Water resistance differs: 50m (5 ATM) vs 100m (10 ATM).

💰

Value & Cost of Ownership

Edge: Casio

Casio sits in the lower tier

The Citizen Tsuyosa Automatic sits at $250–$500 and the Casio MRW-230H at Under $50. On the specs that outlast any price: the Tsuyosa Automatic uses Sapphire Crystal with Cyclops with 40 Hours, against Resin Glass and Approx. 3-year battery (SR626SW) on the MRW-230H. Service intervals are typically 5-7 years for both.

💧

Water Resistance

Edge: Casio

50m (5 ATM) vs 100m (10 ATM)

The Tsuyosa Automatic is rated to 50m (5 ATM) while the MRW-230H handles 100m (10 ATM). The MRW-230H offers superior water resistance.

Our Verdict

Citizen

Tsuyosa Automatic

Choose the Citizen Tsuyosa Automatic if you prioritize Citizen/Miyota In-House Automatic engineering, Made in Japan craftsmanship, and 50m (5 ATM) water resistance. At $250–$500, it delivers Automatic Caliber 8210 with 40 Hours power reserve.

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Casio

MRW-230H

Choose the Casio MRW-230H if you value Casio Quartz (Battery) technology, Casio (Japan) heritage, and 44.6mm (47.9 x 44.6 x 12.3mm) proportions. At Under $50, the Quartz with Approx. 3-year battery (SR626SW) power reserve makes it a compelling choice.

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The Bottom Line

The Citizen Tsuyosa Automatic and Casio MRW-230H represent two distinct approaches to the timepiece category — the Citizen bringing Made in Japan tradition while Casio delivers Casio (Japan) engineering.

Frequently Asked Questions

The Citizen Tsuyosa Automatic is the better buy if you want a mechanical movement; the Casio MRW-230H is the better buy if you want quartz accuracy with no servicing. For water, the Casio MRW-230H is rated 100 m against 50 m, which is the difference between swimming and diving on one side and splashes on the other. On price, the Casio MRW-230H sits a band lower (Under $50 against $250–$500), 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 MRW-230H offers better upfront value, sitting a tier lower at Under $50. However, the Citizen Tsuyosa Automatic may justify its premium with superior finishing, heritage, or resale value.

Both are suitable for daily wear. The Tsuyosa Automatic at 40mm with 50m (5 ATM) water resistance handles everyday situations. The MRW-230H at 44.6mm (47.9 x 44.6 x 12.3mm) with 100m (10 ATM) is similarly capable. The Tsuyosa Automatic uses Sapphire Crystal with Cyclops while the MRW-230H uses Resin Glass.

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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.