Head-to-Head Comparison

Casio Pro Trek PRW3500T-7 vs Longines Master Collection Moonphase

Casio's diver meets Longines's dress watch

Quick Verdict

The Casio Pro Trek PRW3500T-7 ($250–$500) offers Tough Solar Quartz, Multi-Band 6 precision in the tier below the Longines Master Collection Moonphase ($2,500–$5,000). The Pro Trek PRW3500T-7 measures 56.9 × 53.4 × 14.8mm and is rated 200m (20 ATM). The Master Collection Moonphase counters with Swiss Made craftsmanship and 30m (3 ATM) water resistance. Both are exceptional watches for their respective tiers.

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Casio Pro Trek PRW3500T-7

Casio

Pro Trek PRW3500T-7

$250–$500

Longines Master Collection Moonphase

Longines

Master Collection Moonphase

$2,500–$5,000

Specifications Compared

FeatureCasio Pro Trek PRW3500T-7Longines Master Collection Moonphase
Price$250–$500$2,500–$5,000
Case Size56.9 × 53.4 × 14.8mm40mm
MovementTough Solar (Solar Quartz), Radio-ControlledAutomatic Caliber L899
Caliber TypeTough Solar Quartz, Multi-Band 6Automatic (ETA A31.L91 base)
Power ReserveTough Solar (Rechargeable)72 Hours
Water Resistance200m (20 ATM)30m (3 ATM)
CrystalMineral GlassSapphire Crystal
Case MaterialResin / Stainless Steel, Titanium BraceletStainless Steel
OriginCasio (Japan)Swiss Made

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

Casio's design language vs Longines's approach

The Casio Pro Trek PRW3500T-7 features a Resin / Stainless Steel, Titanium Bracelet case at 56.9 × 53.4 × 14.8mm with Mineral Glass protection. The Longines Master Collection Moonphase offers Stainless Steel construction at 40mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.

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Movement & Performance

Edge: Longines

Tough Solar (Solar Quartz), Radio-Controlled vs Automatic Caliber L899

The Pro Trek PRW3500T-7 runs the Tough Solar (Solar Quartz), Radio-Controlled (Tough Solar Quartz, Multi-Band 6, Tough Solar (Rechargeable) power reserve) at standard frequency. The Master Collection Moonphase uses the Automatic Caliber L899 (Automatic (ETA A31.L91 base), 72 Hours reserve) at 25,200 vph (3.5 Hz). The Master Collection Moonphase offers a longer power reserve.

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Wearability & Fit

Edge: Longines

56.9 × 53.4 × 14.8mm vs 40mm — different wrist presence

At 56.9 × 53.4 × 14.8mm, the Pro Trek PRW3500T-7 has a bolder wrist presence compared to the Master Collection Moonphase at 40mm. Water resistance differs: 200m (20 ATM) vs 30m (3 ATM).

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Value & Cost of Ownership

Edge: Casio

Casio sits in the lower tier

The Casio Pro Trek PRW3500T-7 sits at $250–$500 and the Longines Master Collection Moonphase at $2,500–$5,000. On the specs that outlast any price: the Pro Trek PRW3500T-7 uses Mineral Glass with Tough Solar (Rechargeable), against Sapphire Crystal and 72 Hours on the Master Collection Moonphase. Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Casio

200m (20 ATM) vs 30m (3 ATM)

The Pro Trek PRW3500T-7 is rated to 200m (20 ATM) while the Master Collection Moonphase handles 30m (3 ATM). The Pro Trek PRW3500T-7 is better suited for water activities.

Our Verdict

Casio

Pro Trek PRW3500T-7

Choose the Casio Pro Trek PRW3500T-7 if you prioritize Tough Solar Quartz, Multi-Band 6 engineering, Casio (Japan) craftsmanship, and 200m (20 ATM) water resistance. At $250–$500, it delivers Tough Solar (Solar Quartz), Radio-Controlled with Tough Solar (Rechargeable) power reserve.

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Longines

Master Collection Moonphase

Choose the Longines Master Collection Moonphase if you value Automatic (ETA A31.L91 base) technology, Swiss Made heritage, and 40mm proportions. At $2,500–$5,000, the Automatic Caliber L899 with 72 Hours power reserve makes it a compelling choice.

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The Bottom Line

The Casio Pro Trek PRW3500T-7 and Longines Master Collection Moonphase represent two distinct approaches to fine watchmaking — the Casio bringing Casio (Japan) tradition while Longines delivers Swiss Made engineering.

Frequently Asked Questions

Neither is objectively better — they serve different preferences. The Casio Pro Trek PRW3500T-7 ($250–$500) offers Tough Solar (Solar Quartz), Radio-Controlled with Tough Solar (Rechargeable) power reserve, while the Longines Master Collection Moonphase ($2,500–$5,000) features Automatic Caliber L899 with 30m (3 ATM) water resistance. Choose based on your priorities: Casio (Japan) craftsmanship vs Swiss Made engineering.
The Casio Pro Trek PRW3500T-7 offers better upfront value, sitting a tier lower at $250–$500. However, the Longines Master Collection Moonphase may justify its premium with superior finishing, heritage, or resale value.
Both are suitable for daily wear. The Pro Trek PRW3500T-7 at 56.9 × 53.4 × 14.8mm with 200m (20 ATM) water resistance handles everyday situations. The Master Collection Moonphase at 40mm with 30m (3 ATM) is similarly capable. The Pro Trek PRW3500T-7 uses Mineral Glass while the Master Collection Moonphase uses Sapphire Crystal. 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.