Head-to-Head Comparison

Updated September 5, 2026

Casio Pro Trek PRW-B1000-1 vs Casio Pro Trek PRW3500T-7

Casio's timepiece meets Casio's diver

Quick Verdict

The Casio Pro Trek PRW3500T-7 ($250–$500) delivers Tough Solar Quartz, Multi-Band 6 technology in the tier below the Casio Pro Trek PRW-B1000-1 ($500–$1,000). The Pro Trek PRW3500T-7 measures 56.9 × 53.4 × 14.8mm and is rated 200m (20 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 luxury watch category.

CasioPro Trek PRW-B1000-1$500–$1,000 Check price CasioPro Trek PRW3500T-7$250–$500 Check price

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Casio

Pro Trek PRW-B1000-1

$500–$1,000

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Casio

Pro Trek PRW3500T-7

$250–$500

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Specifications Compared

Feature	Casio Pro Trek PRW-B1000-1	Casio Pro Trek PRW3500T-7
Price	$500–$1,000	$250–$500
Case Size	50.8 × 45.8 × 14.9mm	56.9 × 53.4 × 14.8mm
Movement	Tough Solar (Solar Quartz), Radio-Controlled	Tough Solar (Solar Quartz), Radio-Controlled
Caliber Type	Tough Solar Quartz, Multi-Band 6 + Bluetooth	Tough Solar Quartz, Multi-Band 6
Power Reserve	Tough Solar (Rechargeable)	Tough Solar (Rechargeable)
Water Resistance	100m (10 ATM)	200m (20 ATM)
Crystal	Sapphire with Anti-Reflective Coating	Mineral Glass
Case Material	Bio-Based Resin / Stainless Steel	Resin / Stainless Steel, Titanium Bracelet
Origin	Casio (Japan)	Casio (Japan)

Category-by-Category Analysis

🎨

Design & Aesthetics

Edge: Draw

Casio's design language vs Casio'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 Casio Pro Trek PRW3500T-7 offers Resin / Stainless Steel, Titanium Bracelet construction at 56.9 × 53.4 × 14.8mm with Mineral Glass. Both represent their brand's distinct design philosophy and heritage.

⚙️

Movement & Performance

Edge: Draw

Tough Solar (Solar Quartz), Radio-Controlled vs Tough Solar (Solar Quartz), Radio-Controlled

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 Pro Trek PRW3500T-7 uses the Tough Solar (Solar Quartz), Radio-Controlled (Tough Solar Quartz, Multi-Band 6, Tough Solar (Rechargeable) reserve) at standard. Power reserves are closely matched.

📏

Wearability & Fit

Edge: Casio

50.8 × 45.8 × 14.9mm vs 56.9 × 53.4 × 14.8mm — different wrist presence

At 50.8 × 45.8 × 14.9mm, the Pro Trek PRW-B1000-1 wears more compactly on smaller wrists compared to the Pro Trek PRW3500T-7 at 56.9 × 53.4 × 14.8mm. Water resistance differs: 100m (10 ATM) vs 200m (20 ATM).

💰

Value & Cost of Ownership

Edge: Casio

Casio sits in the lower tier

The Casio Pro Trek PRW-B1000-1 sits at $500–$1,000 and the Casio Pro Trek PRW3500T-7 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 Glass and Tough Solar (Rechargeable) on the Pro Trek PRW3500T-7. Service intervals are typically 5-7 years for both.

💧

Water Resistance

Edge: Casio

100m (10 ATM) vs 200m (20 ATM)

The Pro Trek PRW-B1000-1 is rated to 100m (10 ATM) while the Pro Trek PRW3500T-7 handles 200m (20 ATM). The Pro Trek PRW3500T-7 offers superior water resistance.

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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Casio

Pro Trek PRW3500T-7

Choose the Casio Pro Trek PRW3500T-7 if you value Tough Solar Quartz, Multi-Band 6 technology, Casio (Japan) heritage, and 56.9 × 53.4 × 14.8mm proportions. At $250–$500, the Tough Solar (Solar Quartz), Radio-Controlled with Tough Solar (Rechargeable) power reserve makes it a compelling choice.

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The Bottom Line

The Casio Pro Trek PRW-B1000-1 and Casio Pro Trek PRW3500T-7 represent two distinct approaches to fine watchmaking — the Casio bringing Casio (Japan) tradition while Casio delivers Casio (Japan) engineering.

Frequently Asked Questions

For water, the Casio Pro Trek PRW3500T-7 is rated 200 m against 100 m, which is the difference between swimming and diving on one side and splashes on the other. On price, the Casio Pro Trek PRW3500T-7 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 Casio Pro Trek PRW3500T-7 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 Pro Trek PRW3500T-7 at 56.9 × 53.4 × 14.8mm with 200m (20 ATM) is similarly capable. The Pro Trek PRW-B1000-1 uses Sapphire with Anti-Reflective Coating while the Pro Trek PRW3500T-7 uses Mineral Glass. 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.