Head-to-Head Comparison

Casio Pro Trek PRG340-1 vs Tissot PRX Powermatic 80 35mm

Two timepieces compared — $150–$250 vs $500–$1,000

Quick Verdict

The Casio Pro Trek PRG340-1 ($150–$250) offers Tough Solar Quartz (No Battery Change) precision in the tier below the Tissot PRX Powermatic 80 35mm ($500–$1,000). The Pro Trek PRG340-1 measures 54.7 × 51.7 × 15.1mm and is rated 100m (10 ATM). The PRX Powermatic 80 35mm counters with Swiss Made craftsmanship and 100m (10 ATM) water resistance. Both are exceptional timepieces for their respective tiers.

Transparency — We earn a small commission on purchases made through our Amazon links. This doesn't affect our editorial independence.

Casio Pro Trek PRG340-1

Casio

Pro Trek PRG340-1

$150–$250

Tissot PRX Powermatic 80 35mm

Tissot

PRX Powermatic 80 35mm

$500–$1,000

Specifications Compared

FeatureCasio Pro Trek PRG340-1Tissot PRX Powermatic 80 35mm
Price$150–$250$500–$1,000
Case Size54.7 × 51.7 × 15.1mm35mm
MovementTough Solar (Solar Quartz)Automatic Powermatic 80 (Caliber 80.111)
Caliber TypeTough Solar Quartz (No Battery Change)ETA/Tissot Automatic
Power ReserveTough Solar (Rechargeable)80 Hours
Water Resistance100m (10 ATM)100m (10 ATM)
CrystalMineral GlassSapphire Crystal
Case MaterialBio-Based ResinStainless Steel
OriginCasio (Japan)Swiss Made

Category-by-Category Analysis

🎨

Design & Aesthetics

Edge: Draw

Casio's design language vs Tissot'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 Tissot PRX Powermatic 80 35mm offers Stainless Steel construction at 35mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.

⚙️

Movement & Performance

Edge: Tissot

Tough Solar (Solar Quartz) vs Automatic Powermatic 80 (Caliber 80.111)

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 PRX Powermatic 80 35mm uses the Automatic Powermatic 80 (Caliber 80.111) (ETA/Tissot Automatic, 80 Hours reserve) at 21,600 vph (3 Hz). The PRX Powermatic 80 35mm offers a longer power reserve.

📏

Wearability & Fit

Edge: Tissot

54.7 × 51.7 × 15.1mm vs 35mm — different wrist presence

At 54.7 × 51.7 × 15.1mm, the Pro Trek PRG340-1 has a bolder wrist presence compared to the PRX Powermatic 80 35mm at 35mm. 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 Tissot PRX Powermatic 80 35mm at $500–$1,000. On the specs that outlast any price: the Pro Trek PRG340-1 uses Mineral Glass with Tough Solar (Rechargeable), against Sapphire Crystal and 80 Hours on the PRX Powermatic 80 35mm. 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 PRX Powermatic 80 35mm 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.

Check Price on Amazon

Tissot

PRX Powermatic 80 35mm

Choose the Tissot PRX Powermatic 80 35mm if you value ETA/Tissot Automatic technology, Swiss Made heritage, and 35mm proportions. At $500–$1,000, the Automatic Powermatic 80 (Caliber 80.111) with 80 Hours power reserve makes it a compelling choice.

Check Price on Amazon

The Bottom Line

The Casio Pro Trek PRG340-1 and Tissot PRX Powermatic 80 35mm represent two distinct approaches to the timepiece category — the Casio bringing Casio (Japan) tradition while Tissot delivers Swiss Made engineering.

Frequently Asked Questions

Neither is objectively better — they serve different preferences. The Casio Pro Trek PRG340-1 ($150–$250) offers Tough Solar (Solar Quartz) with Tough Solar (Rechargeable) power reserve, while the Tissot PRX Powermatic 80 35mm ($500–$1,000) features Automatic Powermatic 80 (Caliber 80.111) with 100m (10 ATM) water resistance. Choose based on your priorities: Casio (Japan) craftsmanship vs Swiss Made engineering.
The Casio Pro Trek PRG340-1 offers better upfront value, sitting a tier lower at $150–$250. However, the Tissot PRX Powermatic 80 35mm 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 PRX Powermatic 80 35mm at 35mm with 100m (10 ATM) is similarly capable. The Pro Trek PRG340-1 uses Mineral Glass while the PRX Powermatic 80 35mm 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.