Head-to-Head Comparison

Casio Pro Trek PRW-B1000-1 vs Invicta Pro Diver Automatic 23681

Casio's timepiece meets Invicta's diver

Quick Verdict

The Invicta Pro Diver Automatic 23681 ($50–$100) delivers Automatic (Seiko NH35A) technology in the tier below the Casio Pro Trek PRW-B1000-1 ($500–$1,000). The Pro Diver Automatic 23681 measures 40mm and is rated 200m. 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.

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Casio Pro Trek PRW-B1000-1

Casio

Pro Trek PRW-B1000-1

$500–$1,000

Invicta Pro Diver Automatic 23681

Invicta

Pro Diver Automatic 23681

$50–$100

Specifications Compared

FeatureCasio Pro Trek PRW-B1000-1Invicta Pro Diver Automatic 23681
Price$500–$1,000$50–$100
Case Size50.8 × 45.8 × 14.9mm40mm
MovementTough Solar (Solar Quartz), Radio-ControlledAutomatic NH35A
Caliber TypeTough Solar Quartz, Multi-Band 6 + BluetoothAutomatic (Seiko NH35A)
Power ReserveTough Solar (Rechargeable)
Water Resistance100m (10 ATM)200m
CrystalSapphire with Anti-Reflective CoatingMineral Glass
Case MaterialBio-Based Resin / Stainless Steel
OriginCasio (Japan)Invicta (Japanese movement)

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

Casio's design language vs Invicta'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 Invicta Pro Diver Automatic 23681 offers steel construction at 40mm with Mineral Glass. Both represent their brand's distinct design philosophy and heritage.

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Movement & Performance

Edge: Draw

Tough Solar (Solar Quartz), Radio-Controlled vs Automatic NH35A

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 Diver Automatic 23681 uses the Automatic NH35A (Automatic (Seiko NH35A), standard reserve) at standard. Power reserves are closely matched.

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Wearability & Fit

Edge: Invicta

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 Pro Diver Automatic 23681 at 40mm. Water resistance differs: 100m (10 ATM) vs 200m.

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Value & Cost of Ownership

Edge: Invicta

Invicta sits in the lower tier

The Casio Pro Trek PRW-B1000-1 sits at $500–$1,000 and the Invicta Pro Diver Automatic 23681 at $50–$100. 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 a standard reserve on the Pro Diver Automatic 23681. Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Invicta

100m (10 ATM) vs 200m

The Pro Trek PRW-B1000-1 is rated to 100m (10 ATM) while the Pro Diver Automatic 23681 handles 200m. The Pro Diver Automatic 23681 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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Invicta

Pro Diver Automatic 23681

Choose the Invicta Pro Diver Automatic 23681 if you value Automatic (Seiko NH35A) technology, Invicta (Japanese movement) heritage, and 40mm proportions. At $50–$100, the Automatic NH35A with ample power reserve makes it a compelling choice.

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The Bottom Line

The Casio Pro Trek PRW-B1000-1 and Invicta Pro Diver Automatic 23681 represent two distinct approaches to fine watchmaking — the Casio bringing Casio (Japan) tradition while Invicta delivers Invicta (Japanese movement) engineering.

Frequently Asked Questions

Neither is objectively better — they serve different preferences. The Casio Pro Trek PRW-B1000-1 ($500–$1,000) offers Tough Solar (Solar Quartz), Radio-Controlled with Tough Solar (Rechargeable) power reserve, while the Invicta Pro Diver Automatic 23681 ($50–$100) features Automatic NH35A with 200m water resistance. Choose based on your priorities: Casio (Japan) craftsmanship vs Invicta (Japanese movement) engineering.
The Invicta Pro Diver Automatic 23681 offers better upfront value, sitting a tier lower at $50–$100. 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 Diver Automatic 23681 at 40mm with 200m is similarly capable. The Pro Trek PRW-B1000-1 uses Sapphire with Anti-Reflective Coating while the Pro Diver Automatic 23681 uses Mineral Glass. Sapphire resists scratches noticeably better than mineral glass.

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.