Head-to-Head Comparison

Updated September 5, 2026

Casio Pro Trek PRG340-1 vs Casio Pro Trek PRG601-1

Two timepieces compared — $150–$250 vs $250–$500

Quick Verdict

The Casio Pro Trek PRG340-1 ($150–$250) offers Tough Solar Quartz (No Battery Change) precision in the tier below the Casio Pro Trek PRG601-1 ($250–$500). The Pro Trek PRG340-1 measures 54.7 × 51.7 × 15.1mm 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.

CasioPro Trek PRG340-1$150–$250 Check price CasioPro Trek PRG601-1$250–$500 Check price

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Casio

Pro Trek PRG340-1

$150–$250

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Casio

Pro Trek PRG601-1

$250–$500

Check Price Full Review

Specifications Compared

Feature	Casio Pro Trek PRG340-1	Casio Pro Trek PRG601-1
Price	$150–$250	$250–$500
Case Size	54.7 × 51.7 × 15.1mm	51.6mm
Movement	Tough Solar (Solar Quartz)	Tough Solar (Solar Quartz)
Caliber Type	Tough Solar Quartz (No Battery Change)	Tough Solar Quartz (No Battery Change)
Power Reserve	Tough Solar (Rechargeable)	7 Months (Solar, Full Charge); 25 Months Power Save
Water Resistance	100m (10 ATM)	100m (10 ATM)
Crystal	Mineral Glass	Mineral Glass
Case Material	Bio-Based Resin	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 Pro Trek PRG340-1 features a Bio-Based Resin case at 54.7 × 51.7 × 15.1mm with Mineral 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

Tough Solar (Solar Quartz) vs Tough Solar (Solar Quartz)

The Pro Trek PRG340-1 runs the Tough Solar (Solar Quartz) (Tough Solar Quartz (No Battery Change), Tough Solar (Rechargeable) 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

54.7 × 51.7 × 15.1mm vs 51.6mm — different wrist presence

At 54.7 × 51.7 × 15.1mm, the Pro Trek PRG340-1 has a bolder wrist presence compared to the Pro Trek PRG601-1 at 51.6mm. Water resistance differs: 100m (10 ATM) vs 100m (10 ATM).

💰

Value & Cost of Ownership

Edge: Casio

Casio sits in the lower tier

The Casio Pro Trek PRG340-1 sits at $150–$250 and the Casio Pro Trek PRG601-1 at $250–$500. On the specs that outlast any price: the Pro Trek PRG340-1 uses Mineral Glass with Tough Solar (Rechargeable), 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.

💧

Water Resistance

Edge: Draw

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

The Pro Trek PRG340-1 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

Pro Trek PRG340-1

Choose the Casio Pro Trek PRG340-1 if you prioritize Tough Solar Quartz (No Battery Change) engineering, Casio (Japan) craftsmanship, and 100m (10 ATM) water resistance. At $150–$250, it delivers Tough Solar (Solar Quartz) with Tough Solar (Rechargeable) 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 Pro Trek PRG340-1 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 Pro Trek PRG340-1 sits a band lower ($150–$250 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 Pro Trek PRG340-1 offers better upfront value, sitting a tier lower at $150–$250. 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 Pro Trek PRG340-1 at 54.7 × 51.7 × 15.1mm with 100m (10 ATM) water resistance handles everyday situations. The Pro Trek PRG601-1 at 51.6mm with 100m (10 ATM) is similarly capable. Both use 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.