Head-to-Head Comparison

Updated September 5, 2026

Casio MRW-230H vs Junghans Form A Automatic

Casio's timepiece meets Junghans's dress watch

Quick Verdict

The Casio MRW-230H (Under $50) offers Casio Quartz (Battery) precision in the tier below the Junghans Form A Automatic ($1,000–$1,500). The MRW-230H measures 44.6mm (47.9 x 44.6 x 12.3mm) and is rated 100m (10 ATM). The Form A Automatic counters with Made in Germany craftsmanship and 50m (5 ATM) water resistance. Both are exceptional watches for their respective tiers.

CasioMRW-230HUnder $50 Check price View the dossier

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Casio

MRW-230H

Under $50

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Junghans

Form A Automatic

$1,000–$1,500

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Specifications Compared

Feature	Casio MRW-230H	Junghans Form A Automatic
Price	Under $50	$1,000–$1,500
Case Size	44.6mm (47.9 x 44.6 x 12.3mm)	39.3mm
Movement	Quartz	Automatic J800.2 (ETA 2824-2)
Caliber Type	Casio Quartz (Battery)	Swiss ETA Base, German-Finished
Power Reserve	Approx. 3-year battery (SR626SW)	38 Hours
Water Resistance	100m (10 ATM)	50m (5 ATM)
Crystal	Resin Glass	Flat Sapphire with Anti-Reflective Coating
Case Material	Resin case, aluminum bezel ring	Stainless Steel
Origin	Casio (Japan)	Made in Germany

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

Casio's design language vs Junghans's approach

The Casio MRW-230H features a Resin case, aluminum bezel ring case at 44.6mm (47.9 x 44.6 x 12.3mm) with Resin Glass protection. The Junghans Form A Automatic offers Stainless Steel construction at 39.3mm with Flat Sapphire with Anti-Reflective Coating. Both represent their brand's distinct design philosophy and heritage.

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Movement & Performance

Edge: Junghans

Quartz vs Automatic J800.2 (ETA 2824-2)

The MRW-230H runs the Quartz (Casio Quartz (Battery), Approx. 3-year battery (SR626SW) power reserve) at standard frequency. The Form A Automatic uses the Automatic J800.2 (ETA 2824-2) (Swiss ETA Base, German-Finished, 38 Hours reserve) at 28,800 vph (4 Hz). The Form A Automatic offers a longer power reserve.

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Wearability & Fit

Edge: Junghans

44.6mm (47.9 x 44.6 x 12.3mm) vs 39.3mm — different wrist presence

At 44.6mm (47.9 x 44.6 x 12.3mm), the MRW-230H has a bolder wrist presence compared to the Form A Automatic at 39.3mm. Water resistance differs: 100m (10 ATM) vs 50m (5 ATM).

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Value & Cost of Ownership

Edge: Casio

Casio sits in the lower tier

The Casio MRW-230H sits at Under $50 and the Junghans Form A Automatic at $1,000–$1,500. On the specs that outlast any price: the MRW-230H uses Resin Glass with Approx. 3-year battery (SR626SW), against Flat Sapphire with Anti-Reflective Coating and 38 Hours on the Form A Automatic. Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Casio

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

The MRW-230H is rated to 100m (10 ATM) while the Form A Automatic handles 50m (5 ATM). The MRW-230H is better suited for water activities.

Our Verdict

Casio

MRW-230H

Choose the Casio MRW-230H if you prioritize Casio Quartz (Battery) engineering, Casio (Japan) craftsmanship, and 100m (10 ATM) water resistance. At Under $50, it delivers Quartz with Approx. 3-year battery (SR626SW) power reserve.

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Junghans

Form A Automatic

Choose the Junghans Form A Automatic if you value Swiss ETA Base, German-Finished technology, Made in Germany heritage, and 39.3mm proportions. At $1,000–$1,500, the Automatic J800.2 (ETA 2824-2) with 38 Hours power reserve makes it a compelling choice.

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The Bottom Line

The Casio MRW-230H and Junghans Form A Automatic represent two distinct approaches to fine watchmaking — the Casio bringing Casio (Japan) tradition while Junghans delivers Made in Germany engineering.

Frequently Asked Questions

The Junghans Form A 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 $1,000–$1,500), 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 Junghans Form A Automatic may justify its premium with superior finishing, heritage, or resale value.

Both are suitable for daily wear. The MRW-230H at 44.6mm (47.9 x 44.6 x 12.3mm) with 100m (10 ATM) water resistance handles everyday situations. The Form A Automatic at 39.3mm with 50m (5 ATM) is similarly capable. The MRW-230H uses Resin Glass while the Form A Automatic uses Flat Sapphire with Anti-Reflective Coating.

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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.