Head-to-Head Comparison

Updated September 5, 2026

Casio Pro Trek PRW-B1000-1 vs Timex Marlin Automatic 40mm

Two timepieces compared — $500–$1,000 vs $250–$500

Quick Verdict

The Timex Marlin Automatic 40mm ($250–$500) delivers Miyota Automatic technology in the tier below the Casio Pro Trek PRW-B1000-1 ($500–$1,000). The Marlin Automatic 40mm measures 40mm and is rated 30m (3 ATM). The Pro Trek PRW-B1000-1 justifies its premium with Casio (Japan) heritage and Tough Solar (Solar Quartz), Radio-Controlled. Both represent excellent choices in the timepiece category.

CasioPro Trek PRW-B1000-1$500–$1,000 Check price View the dossier

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Casio

Pro Trek PRW-B1000-1

$500–$1,000

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Timex

Marlin Automatic 40mm

$250–$500

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Specifications Compared

Feature	Casio Pro Trek PRW-B1000-1	Timex Marlin Automatic 40mm
Price	$500–$1,000	$250–$500
Case Size	50.8 × 45.8 × 14.9mm	40mm
Movement	Tough Solar (Solar Quartz), Radio-Controlled	Automatic Miyota 8205
Caliber Type	Tough Solar Quartz, Multi-Band 6 + Bluetooth	Miyota Automatic
Power Reserve	Tough Solar (Rechargeable)	40 Hours
Water Resistance	100m (10 ATM)	30m (3 ATM)
Crystal	Sapphire with Anti-Reflective Coating	Mineral Crystal
Case Material	Bio-Based Resin / Stainless Steel	Stainless Steel
Origin	Casio (Japan)	Made in Japan (Movement)

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

Casio's design language vs Timex's approach

The Casio Pro Trek PRW-B1000-1 features a Bio-Based Resin / Stainless Steel case at 50.8 × 45.8 × 14.9mm with Sapphire with Anti-Reflective Coating protection. The Timex Marlin Automatic 40mm offers Stainless Steel construction at 40mm with Mineral Crystal. Both represent their brand's distinct design philosophy and heritage.

⚙️

Movement & Performance

Edge: Timex

Tough Solar (Solar Quartz), Radio-Controlled vs Automatic Miyota 8205

The Pro Trek PRW-B1000-1 runs the Tough Solar (Solar Quartz), Radio-Controlled (Tough Solar Quartz, Multi-Band 6 + Bluetooth, Tough Solar (Rechargeable) power reserve) at standard frequency. The Marlin Automatic 40mm uses the Automatic Miyota 8205 (Miyota Automatic, 40 Hours reserve) at 21,600 vph (3 Hz). The Marlin Automatic 40mm offers a longer power reserve.

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Wearability & Fit

Edge: Timex

50.8 × 45.8 × 14.9mm vs 40mm — different wrist presence

At 50.8 × 45.8 × 14.9mm, the Pro Trek PRW-B1000-1 has a bolder wrist presence compared to the Marlin Automatic 40mm at 40mm. Water resistance differs: 100m (10 ATM) vs 30m (3 ATM).

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Value & Cost of Ownership

Edge: Timex

Timex sits in the lower tier

The Casio Pro Trek PRW-B1000-1 sits at $500–$1,000 and the Timex Marlin Automatic 40mm at $250–$500. On the specs that outlast any price: the Pro Trek PRW-B1000-1 uses Sapphire with Anti-Reflective Coating with Tough Solar (Rechargeable), against Mineral Crystal and 40 Hours on the Marlin Automatic 40mm. Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Casio

100m (10 ATM) vs 30m (3 ATM)

The Pro Trek PRW-B1000-1 is rated to 100m (10 ATM) while the Marlin Automatic 40mm handles 30m (3 ATM). The Pro Trek PRW-B1000-1 is better suited for water activities.

Our Verdict

Casio

Pro Trek PRW-B1000-1

Choose the Casio Pro Trek PRW-B1000-1 if you prioritize Tough Solar Quartz, Multi-Band 6 + Bluetooth engineering, Casio (Japan) craftsmanship, and 100m (10 ATM) water resistance. At $500–$1,000, it delivers Tough Solar (Solar Quartz), Radio-Controlled with Tough Solar (Rechargeable) power reserve.

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Timex

Marlin Automatic 40mm

Choose the Timex Marlin Automatic 40mm if you value Miyota Automatic technology, Made in Japan (Movement) heritage, and 40mm proportions. At $250–$500, the Automatic Miyota 8205 with 40 Hours power reserve makes it a compelling choice.

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The Bottom Line

The Casio Pro Trek PRW-B1000-1 and Timex Marlin Automatic 40mm represent two distinct approaches to the timepiece category — the Casio bringing Casio (Japan) tradition while Timex delivers Made in Japan (Movement) engineering.

Frequently Asked Questions

The Timex Marlin Automatic 40mm is the better buy if you want a mechanical movement; the Casio Pro Trek PRW-B1000-1 is the better buy if you want solar power and quartz accuracy with no servicing. For water, the Casio Pro Trek PRW-B1000-1 is rated 100 m against 30 m, which is the difference between swimming and diving on one side and splashes on the other. On price, the Timex Marlin Automatic 40mm sits a band lower ($250–$500 against $500–$1,000), 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 Timex Marlin Automatic 40mm offers better upfront value, sitting a tier lower at $250–$500. However, the Casio Pro Trek PRW-B1000-1 may justify its premium with superior finishing, heritage, or resale value.

Both are suitable for daily wear. The Pro Trek PRW-B1000-1 at 50.8 × 45.8 × 14.9mm with 100m (10 ATM) water resistance handles everyday situations. The Marlin Automatic 40mm at 40mm with 30m (3 ATM) is similarly capable. The Pro Trek PRW-B1000-1 uses Sapphire with Anti-Reflective Coating while the Marlin Automatic 40mm uses Mineral Crystal. Sapphire resists scratches noticeably better than 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.