Deal | This feature-packed Casio Pro Trek with Triple Sensor, Duplex LCD, and Tough Solar is heavily discounted

If you’ve been on a hunt for a reliable outdoor watch that packs in advanced tracking features, is easy to wear, and doesn’t burn a hole in your pocket, your search might be over. We’re seeing a great deal on a purpose-built Casio Pro Trek outdoor watch that sports a large dual-layer LCD, a functional rotating bezel, and built-in ABC sensors for tracking weather changes in real-time. 

Normally $310, you can snag the Casio Pro Trek PRG340-1 for just $196.27 on Amazon right now. That doesn't quite match its all-time low of $179 we tracked last year, but it's still a solid deal on one of the best Pro Trek models and beats Casio's online store, where it's currently listed at its full price. 

Designed specifically with outdoor enthusiasts in mind, the Pro Trek PRG340-1 packs Casio's Triple Sensor system. This equips your wrist with a built-in altimeter/barometer, a digital compass, and a thermometer, providing real-time readings of natural conditions that are essential for trekking, climbing, or navigating off-grid. Like other Pro Trek models, this one also comes equipped with a Duplex LCD, which significantly improves legibility by dedicating the top layer entirely to large compass graphics, while the bottom layer handles the time and your sensor measurements. Meanwhile, a dedicated dot-matrix section up top offers glanceable information such as the date and barometric pressure trends.

The PRG340-1 also boasts a functional rotating bezel that serves as a simple orientation tool, and oversized buttons with a non-slip finish, allowing you to press the buttons even while wearing heavy gloves. At just 54g, it's a pretty lightweight watch and sits comfortably on the wrist with its durable urethane band. It is also well-protected against the elements, boasting 100 meters of water resistance and low-temperature resistance down to 14 degrees Fahrenheit.

To keep all these advanced features running seamlessly on the go, the PRG340-1 is equipped with Casio's Tough Solar charging system. That means it draws power from direct sunlight and weak indoor light sources, ensuring your battery stays topped up on the trail. With a massive $112 discount, this is an incredibly reliable and feature-rich companion for your next backcountry adventure.

Specifications

• Case size: 54.7 × 51.7 × 15.1 mm
• Weight: 54 g
• Case & bezel material: Bio-based resin
• Band: Soft urethane strap (bio-based resin)
• Water resistance: 100 meters
• Environmental resistance: Low-temperature resistant (-10°C / 14°F)
• Glass: Mineral glass
• Power: Tough Solar (solar-powered)
• Battery life: Up to 7 months (normal use), up to 27 months (power-saving mode)
• Altimeter: -700 to 10,000 m range; trek log (up to 14 records); manual memory (30 records)
• Barometer: 260–1,100 hPa range with 42-hour pressure trend graph and pressure alerts
• Compass: 16-point direction, 0–359° range, bearing memory, magnetic declination correction
• Thermometer: -10°C to 60°C (14°F to 140°F)
• Display: Duplex LCD (dual-layer display for improved readability)
• Bezel: Direction bezel for orientation tracking
• Compatible wrist size: 145 to 215 mm
• World time: 31 time zones (48 cities + UTC), DST on/off
• Sunrise/sunset display: Yes (date-specific)
• Stopwatch: 1/10-second, up to 999:59'59.9''
• Countdown timer: Up to 24 hours
• Alarms: 5 daily alarms (1 snooze) + hourly signal
• Backlight: LED (Super Illuminator) with auto light and afterglow
• Calendar: Full auto-calendar (to 2099)
• Energy saving: Power-saving mode + battery level indicator
• Accuracy: ±15 seconds per month

Disclaimer: Notebookcheck is not responsible for price changes carried out by retailers. The discounted price or deal mentioned in this item was available at the time of writing and may be subject to time restrictions and/or limited unit availability.