---
product_id: 467129957
title: "PRG340 Series | Pro Trek | 100 Meter Water Resistance | Compass | Alt/Baro-Thermo | Tough Solar Power | 1-100 SEC Stopwatch | Countdown Timer | World Time"
brand: "casio"
price: "$643.01"
currency: USD
in_stock: true
reviews_count: 13
category: "Casio"
url: https://www.desertcart.us/products/467129957-prg340-series-pro-trek-100-meter-water-resistance-compass-alt
store_origin: US
region: United States of America
---

# 100M Water Resistance - adventure-ready Triple Sensor Compass - precise navigation Tough Solar Power - endless energy PRG340 Series | Pro Trek | 100 Meter Water Resistance | Compass | Alt/Baro-Thermo | Tough Solar Power | 1-100 SEC Stopwatch | Countdown Timer | World Time

**Brand:** casio
**Price:** $643.01
**Availability:** ✅ In Stock

## Summary

> 🕶️ Own the outdoors with style and smarts — the Casio Pro Trek PRG340 is your ultimate adventure ally!

## Quick Answers

- **What is this?** PRG340 Series | Pro Trek | 100 Meter Water Resistance | Compass | Alt/Baro-Thermo | Tough Solar Power | 1-100 SEC Stopwatch | Countdown Timer | World Time by casio
- **How much does it cost?** $643.01 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/467129957-prg340-series-pro-trek-100-meter-water-resistance-compass-alt)

## Best For

- casio enthusiasts

## Why This Product

- Trusted casio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-Weather Ready:** 100-meter water resistance and super illuminator LED ensure visibility and reliability rain or shine.
- • **Global Timekeeper:** World time and stopwatch features keep you synced and on schedule across time zones.
- • **Rugged Yet Refined:** Titanium band and bio-based plastic case combine durability with eco-conscious style.
- • **Solar-Powered Freedom:** Harness sunlight for uninterrupted power—ditch daily charging anxiety.
- • **Triple Sensor Precision:** Navigate with confidence using compass, altimeter, barometer & thermometer all in one sleek device.

## Overview

The Casio PRG340 Pro Trek is a solar-powered, eco-friendly wristwatch featuring a triple sensor system (compass, altimeter, barometer, thermometer), 100-meter water resistance, and a durable titanium band. Designed for professionals and adventurers alike, it offers precise navigation, world time, stopwatch, and countdown timer functions in a sleek, rugged package that supports an active, environmentally conscious lifestyle.

## Description

Product Description Bio-mass Plastics Be At One With Nature The case, case back, and soft urethane band are all made with a material known as biomass plastics. Using renewable organic resources such as castor oil plants and corn helps reduce the footprint. Eco-consciousness rendered in physical form, a fitting material for a real outdoor tool. *Biomass plastics are not used in the metal band of the PRG-340T. Triple Sensor Measure direction, air pressure and temperature, and altitude, each one available directly from a single button. The oversized buttons feature a nonslip finish for effortless use even when wearing gloves. In addition, improved sensor placement makes the side of the case even slimmer. Tough Solar Powered Approx. Battery operating time: 7 months on rechargeable battery (operation period with normal use without exposure to light after charge) 27 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge) 100 M Water Resistance Low-temperature resistance (-10℃) Tough Solar (solar powered) triple Sensor -Digital compass, Barometer, Altimeter, Thermometer Sunrise, sunset time display 1/10-second stopwatch (measuring capacity: 1,000 hours), Countdown timer 5 daily alarms Full-auto LED backlight (Super Illuminator) Key Features Tough Solar Power Integrated Solar Panel That Uses Sunlight and UV Light to Recharge the Watch’s Battery Triple Sensor - Altimeter, Barometer, Compass, and Thermometer Triple Sensor (digital compass, barometer/altimeter, and thermometer) senses natural changes Craftsmanship With Bio-Mass Plasstics Duplex LCD The dual-layer LCD allows compass graphics to be shown on the top layer, while the bottom layer offers a large display of the time and various measurements. We’ve also made the LCD slimmer to minimize bulk, even with the dual-layer construction.

Review: Solid watch with amazing features! - Excellent watch. The titanium band was easy to adjust with the included tool. Auto on light is one of the features I use every day and at night. Sensors are very accurate. I need the compass and use it indoors to orient for reports. The world time is something I'm familiar with and it's quick to change when traveling.
Review: Yet another classic win for Casio. Checks all the boxes. - This watch was a replacement for my 12 year old Casio Pro Trek PRW 3500. The new watch is lighter, thinner and the buttons are easier to activate. I love the rugged and functional looks of this watch. Also, unlike the Apple Watch, you don't need to worry about recharging the battery, it's solar powered. A big plus if you plan to be somewhere that does not have access to electrical outlets. The only thing missing in this watch vs. the 3500 is atomic auto timing. But with the watch being +/- 15 seconds per month that is no big deal.

## Features

- Casio's Tough Solar Technology charges your watch by converting light to energy
- Part of Casio's green initiative - Featuring Eco-Friendly Biomass Construction and environmentally friendly / recyclable packaging, paperwork & user's manual
- Triple Sensor (Version 3) includes a Digital Compass, Barometer, Thermometer & Altimeter
- 100M Water Resistance | Rotating Bezel | Super Illuminator w/ Full Auto LED/LCD Screen
- Measuring range: -700 to 10,000 m (-2,300 to 32,800 ft.)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09Z4JQCC1 |
| Additional Features | Compass |
| Age Range Description | Adult |
| Band Color | Silver-Tone |
| Band Material Type | Titanium |
| Band Width | 22 Millimeters |
| Bands | 1 |
| Best Sellers Rank | #279,862 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #958 in Men's Wrist Watches |
| Brand Name | Casio |
| Case Diameter | 54.7 Millimeters |
| Case Material Type | Bio Based Plastic |
| Case Thickness | 13.5 Millimeters |
| Clasp Type | Deployment Clasp |
| Closure Type | Buckle |
| Crystal | Mineral Crystal |
| Customer Reviews | 4.7 out of 5 stars 528 Reviews |
| Dial Color | Digital |
| Display | Digital |
| Embellishment Feature | Crystal |
| Face Style | Crosshair |
| Global Trade Identification Number | 00889232328157 |
| Included Components | Watch, Titanium Band, Stainless Steel Buckle |
| Item Type Name | Watch |
| Item Weight | 0.24 Kilograms |
| Manufacturer | Casio |
| Manufacturer Part Number | PRG-340T-7CR |
| Model Name | PRG-340T-7 |
| Model Number | PRG-340T-7CR |
| Power Source | Solar Powered |
| Series Number | 340 |
| Shape | Round |
| Sport Type | Walking |
| Strap Type | Bracelet |
| Style Name | PRG-340T-7CR |
| Theme | Sports |
| UPC | 889232328157 |
| Warranty Type | Limited |
| Watch Movement Type | Tough Solar |
| Water Resistance Depth | 100 Meters |
| Water Resistance Level | Water Resistant |

## Images

![PRG340 Series | Pro Trek | 100 Meter Water Resistance | Compass | Alt/Baro-Thermo | Tough Solar Power | 1-100 SEC Stopwatch | Countdown Timer | World Time - Image 1](https://m.media-amazon.com/images/I/81UbeQypd6L.jpg)

## Available Options

This product comes in different **Color, Style** options.

## Questions & Answers

**Q: Does it have a step counter?**
A: If you want a Casio watch with a step counter, you can look at the GBD100 or 800 series.

**Q: Does it really gain 2 seconds a week??? That would make this watch trash ....**
A: Mine hasn't! Keeps accurate time.

**Q: Dose time update when you travel?**
A: No. You have to physically update time or date if traveling across different time zones or cross international date line.

**Q: What actually is Tough Solar  ?does Tough solar have a battery ?**
A: Yes there is a battery that is rechargeable. It is recharged by the solar cell so you never have to replace it.  As long as the watch sees some light once in a while it will keep running without having to worry about changing a battery

## Customer Reviews

### ⭐⭐⭐⭐⭐ Solid watch with amazing features!
*by M***A on April 5, 2026*

Excellent watch. The titanium band was easy to adjust with the included tool. Auto on light is one of the features I use every day and at night. Sensors are very accurate. I need the compass and use it indoors to orient for reports. The world time is something I'm familiar with and it's quick to change when traveling.

### ⭐⭐⭐⭐⭐ Yet another classic win for Casio. Checks all the boxes.
*by G***I on August 29, 2025*

This watch was a replacement for my 12 year old Casio Pro Trek PRW 3500. The new watch is lighter, thinner and the buttons are easier to activate. I love the rugged and functional looks of this watch. Also, unlike the Apple Watch, you don't need to worry about recharging the battery, it's solar powered. A big plus if you plan to be somewhere that does not have access to electrical outlets. The only thing missing in this watch vs. the 3500 is atomic auto timing. But with the watch being +/- 15 seconds per month that is no big deal.

### ⭐⭐⭐⭐⭐ Love love love this watch
*by G***O on July 1, 2023*

I've been wearing digital casios since 1981, most recently the G-shock series. However, the G-shock seemed oriented towards very high durability and a military look, which seemed unnecessary. Some of them had features on the face, for example graphic illustration of the passage of seconds or phases of the moon, that seemed decorative rather than useful. These resulted in cluttered faces. The Pro Trek is simple and functional. Date and time are very visible with a glance. Battery with solar replenishment (and a small charge status indicator), no USB charging. My phone will give me global positioning with a bigger format, no need to duplicate with a watch that will just be one more thing needing charging. One drawback is that some of the minor indicators on the face for settings are much too small, but these are ones that are typically set and not adjusted. I love the very visible compass feature (even though my phone does have one), useful in both urban and nature settings. The Pro Trek is fairly large but is more comfortable that my previous smaller G-shock. Sometimes things are just very pleasing, and this is the case for me with the Pro Trek. I've dropped and banged it a number of times and anticipate continued durability even if it's not a G-shock. BTW, Amazon had an unusually good price, which often is not the case.

## Frequently Bought Together

- Casio PRG340 Series | Pro Trek | 100 Meter Water Resistance | Compass | Alt/Baro-Thermo | Tough Solar Power | 1-100 SEC Stopwatch | Countdown Timer | World Time
- Casio G-Shock GWM5610-1 Men's Solar Black Resin Sport Watch
- Casio Men's Pro Trek PRG-270-1 Tough Solar Triple Sensor Multifunction Digital Sport Watch

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-10*