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New Casio Pro Trek PRG-340 watches land in the US with Triple Sensor tech and Tough Solar

The Casio Pro Trek PRG-340L-5 (top) and the Casio Pro Trek PRG-340B-3 (bottom). (Image source: Casio)
The Casio Pro Trek PRG-340L-5 (top) and the Casio Pro Trek PRG-340B-3 (bottom). (Image source: Casio)
Casio’s Pro Trek PRG-340L-5 and PRG-340B-3 have now arrived in the US, equipped with Triple Sensor tech, Tough Solar charging, and rugged, eco-friendly materials. Pricing starts at $250.

Casio’s Pro Trek line has a long-standing reputation for being built with the outdoors in mind, and now two of its latest models—the PRG-340L-5 and PRG-340B-3—are finally available in the US. These watches bring over all the features seen in their Japanese launch, with a host of practical tools for hikers, climbers, and adventurers who need reliable wrist wear.

The PRG-340L-5 sticks to an earthy coyote brown faux leather strap, which is designed to be flame-resistant while also blending very nicely into natural environments. Meanwhile, the PRG-340B-3 goes for a more tactical approach with an olive green fabric strap made from 'Castlon', a bio-based material derived from castor oil plants.

Both watches share the same Triple Sensor technology, meaning they offer a digital compass, barometer/altimeter, and thermometer, all packed into a dual-layer LCD display that keeps essential readings separate from timekeeping.

As expected from Pro Trek models, Tough Solar charging is onboard as well, allowing the watches to convert natural or artificial light into energy. They’re also 10-bar water-resistant, rendering them durable enough for most outdoor conditions.

Casio has priced these at $250 for the PRG-340L-5 and $260 for the PRG-340B-3, and they’re now available for purchase in the US, making it their first official release outside Japan.

Buy the Casio Pro Trek PRG-340-3CR on Amazon, now discounted by 22%.

(Image source: Casio)
(Image source: Casio)

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > News > News Archive > Newsarchive 2025 03 > New Casio Pro Trek PRG-340 watches land in the US with Triple Sensor tech and Tough Solar
Anubhav Sharma, 2025-03-13 (Update: 2025-03-13)