Head-to-Head Comparison

Updated September 5, 2026

Casio MRW-230H vs Casio Pro Trek PRG601-1

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

Quick Verdict

The Casio MRW-230H (Under $50) offers Casio Quartz (Battery) precision in the tier below the Casio Pro Trek PRG601-1 ($250–$500). The MRW-230H measures 44.6mm (47.9 x 44.6 x 12.3mm) and is rated 100m (10 ATM). The Pro Trek PRG601-1 counters with Casio (Japan) craftsmanship and 100m (10 ATM) water resistance. Both are exceptional timepieces for their respective tiers.

CasioMRW-230HUnder $50 Check price CasioPro Trek PRG601-1$250–$500 Check price

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Casio

MRW-230H

Under $50

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Casio

Pro Trek PRG601-1

$250–$500

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Specifications Compared

Feature	Casio MRW-230H	Casio Pro Trek PRG601-1
Price	Under $50	$250–$500
Case Size	44.6mm (47.9 x 44.6 x 12.3mm)	51.6mm
Movement	Quartz	Tough Solar (Solar Quartz)
Caliber Type	Casio Quartz (Battery)	Tough Solar Quartz (No Battery Change)
Power Reserve	Approx. 3-year battery (SR626SW)	7 Months (Solar, Full Charge); 25 Months Power Save
Water Resistance	100m (10 ATM)	100m (10 ATM)
Crystal	Resin Glass	Mineral Glass
Case Material	Resin case, aluminum bezel ring	Bio-Based Resin / Stainless Steel
Origin	Casio (Japan)	Casio (Japan)

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

Casio's design language vs Casio'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 Casio Pro Trek PRG601-1 offers Bio-Based Resin / Stainless Steel construction at 51.6mm with Mineral Glass. Both represent their brand's distinct design philosophy and heritage.

⚙️

Movement & Performance

Edge: Casio

Quartz vs Tough Solar (Solar Quartz)

The MRW-230H runs the Quartz (Casio Quartz (Battery), Approx. 3-year battery (SR626SW) power reserve) at standard frequency. The Pro Trek PRG601-1 uses the Tough Solar (Solar Quartz) (Tough Solar Quartz (No Battery Change), 7 Months (Solar, Full Charge); 25 Months Power Save reserve) at standard. The Pro Trek PRG601-1 offers a longer power reserve.

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Wearability & Fit

Edge: Casio

44.6mm (47.9 x 44.6 x 12.3mm) vs 51.6mm — different wrist presence

At 44.6mm (47.9 x 44.6 x 12.3mm), the MRW-230H wears more compactly on smaller wrists compared to the Pro Trek PRG601-1 at 51.6mm. Water resistance differs: 100m (10 ATM) vs 100m (10 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 Casio Pro Trek PRG601-1 at $250–$500. On the specs that outlast any price: the MRW-230H uses Resin Glass with Approx. 3-year battery (SR626SW), against Mineral Glass and 7 Months (Solar, Full Charge); 25 Months Power Save on the Pro Trek PRG601-1. Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Draw

100m (10 ATM) vs 100m (10 ATM)

The MRW-230H is rated to 100m (10 ATM) while the Pro Trek PRG601-1 handles 100m (10 ATM). Both offer identical water resistance ratings.

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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Casio

Pro Trek PRG601-1

Choose the Casio Pro Trek PRG601-1 if you value Tough Solar Quartz (No Battery Change) technology, Casio (Japan) heritage, and 51.6mm proportions. At $250–$500, the Tough Solar (Solar Quartz) with 7 Months (Solar, Full Charge); 25 Months Power Save power reserve makes it a compelling choice.

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The Bottom Line

The Casio MRW-230H and Casio Pro Trek PRG601-1 represent two distinct approaches to the timepiece category — the Casio bringing Casio (Japan) tradition while Casio delivers Casio (Japan) engineering.

Frequently Asked Questions

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 Casio Pro Trek PRG601-1 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 Pro Trek PRG601-1 at 51.6mm with 100m (10 ATM) is similarly capable. The MRW-230H uses Resin Glass while the Pro Trek PRG601-1 uses Mineral 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.