Casio Pro Trek PRG340-1 vs OLEVS Moon Phase Dress Watch
Casio's timepiece meets OLEVS's dress watch
Quick Verdict
The OLEVS Moon Phase Dress Watch ($100–$150) delivers Quartz (Battery) technology in the tier below the Casio Pro Trek PRG340-1 ($150–$250). The Moon Phase Dress Watch measures mid-size and is rated for daily wear. The Pro Trek PRG340-1 justifies its premium with Casio (Japan) heritage and Tough Solar (Solar Quartz). Both represent excellent choices in the luxury watch category.
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Specifications Compared
| Feature | Casio Pro Trek PRG340-1 | OLEVS Moon Phase Dress Watch |
|---|---|---|
| Price | $150–$250 | $100–$150 |
| Case Size | 54.7 × 51.7 × 15.1mm | — |
| Movement | Tough Solar (Solar Quartz) | Quartz |
| Caliber Type | Tough Solar Quartz (No Battery Change) | Quartz (Battery) |
| Power Reserve | Tough Solar (Rechargeable) | — |
| Water Resistance | 100m (10 ATM) | — |
| Crystal | Mineral Glass | — |
| Case Material | Bio-Based Resin | Stainless Steel |
| Origin | Casio (Japan) | OLEVS |
Category-by-Category Analysis
Design & Aesthetics
Casio's design language vs OLEVS'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 OLEVS Moon Phase Dress Watch offers Stainless Steel construction at mid-size with crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Tough Solar (Solar Quartz) vs Quartz
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 Moon Phase Dress Watch uses the Quartz (Quartz (Battery), standard reserve) at standard. Power reserves are closely matched.
Wearability & Fit
54.7 × 51.7 × 15.1mm vs mid-size — different wrist presence
At 54.7 × 51.7 × 15.1mm, the Pro Trek PRG340-1 has a bolder wrist presence compared to the Moon Phase Dress Watch at 40mm. Water resistance differs: 100m (10 ATM) vs 50m.
Value & Cost of Ownership
OLEVS sits in the lower tier
The Casio Pro Trek PRG340-1 sits at $150–$250 and the OLEVS Moon Phase Dress Watch at $100–$150. On the specs that outlast any price: the Pro Trek PRG340-1 uses Mineral Glass with Tough Solar (Rechargeable), against a hardened crystal and a standard reserve on the Moon Phase Dress Watch. Service intervals are typically 5-7 years for both.
Water Resistance
100m (10 ATM) vs 50m
The Pro Trek PRG340-1 is rated to 100m (10 ATM) while the Moon Phase Dress Watch handles 50m. The Pro Trek PRG340-1 is better suited for water activities.
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 AmazonOLEVS
Moon Phase Dress Watch
Choose the OLEVS Moon Phase Dress Watch if you value Quartz (Battery) technology, OLEVS heritage, and comfortable proportions. At $100–$150, the Quartz with ample power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Casio Pro Trek PRG340-1 and OLEVS Moon Phase Dress Watch represent two distinct approaches to fine watchmaking — the Casio bringing Casio (Japan) tradition while OLEVS delivers OLEVS engineering.
Frequently Asked Questions
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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.

