Casio Pro Trek PRG-340-3DR Tough Solar Triple Sensor Digital Green Watch (PRG-340-3DR)
- Sale price
- R 5,999
- List price
- R 7,999
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Built for adventurers who demand precision and resilience, the Casio Pro Trek PRG-340-3DR delivers advanced outdoor functionality in a robust 51.7mm round case. This digital solar-powered watch features a striking green resin strap accented with orange highlights, paired with a high-contrast digital display designed for optimal legibility in any environment. From mountain trails to coastal expeditions, the PRG-340's Triple Sensor technology equips you with a digital compass, barometer-altimeter, and thermometer — essential tools for navigation and environmental monitoring.
The tough solar charging system ensures continuous operation without battery changes, converting both natural and artificial light into reliable power. Water-resistant to 100 metres and low-temperature resistant to -10°C, this timepiece thrives in demanding conditions. The full-auto LED light with afterglow illuminates readings instantly, while world time functionality covers 48 cities across multiple time zones. A 1/10-second stopwatch, countdown timer, and five daily alarms add practical utility for training sessions and daily scheduling.
At Cassims & Co., we stock a comprehensive selection of CASIO watches that blend technical innovation with field-tested durability. The PRG-340-3DR exemplifies Casio's Pro Trek heritage — delivering professional-grade outdoor instruments in a wearable format. Whether you're tracking altitude gain during a summit push or monitoring barometric pressure before a weather system moves in, this watch provides the data you need at a glance.
Visit us at our Mall of the South boutique to experience the Pro Trek collection first-hand, or take advantage of our secure nationwide delivery service across South Africa. Our watch servicing and repairs team stands ready to support your timepiece throughout its lifespan, ensuring peak performance season after season.
Specifications
- Brand: Casio
- Collection: Pro Trek
- Model Reference: PRG-340-3DR
- Case Shape: Round
- Case Diameter: 51.7mm
- Case Thickness: 15.1mm
- Case Material: Resin
- Dial Type: Digital
- Band Material: Resin
- Band Colour: Green with orange accents
- Movement: Tough Solar (solar-powered quartz)
- Functions: Digital compass, barometer, altimeter (measuring range -700m to 10,000m), thermometer, world time (48 cities), sunrise/sunset time display, 1/10-second stopwatch, countdown timer, 5 daily alarms, full-auto LED light with afterglow
- Water Resistance: 100 metres (10 bar)
- Low-Temperature Resistance: -10°C / 14°F
- Weight: 54g
- Clasp Type: Buckle
- Warranty: 1 year international Casio warranty
FAQ
Q: What does the Triple Sensor technology include?
A: The Triple Sensor system comprises three advanced measurement tools: a digital compass for navigation and bearing reference, a barometer-altimeter that measures atmospheric pressure and altitude from -700 metres to 10,000 metres, and a thermometer for environmental temperature monitoring. These sensors provide real-time data critical for outdoor activities and weather forecasting.
Q: How does the Tough Solar charging system work?
A: The Tough Solar system converts both natural sunlight and artificial indoor lighting into electrical energy, continuously recharging the watch's power cell. This eliminates the need for regular battery replacements — once fully charged, the watch stores sufficient power to operate for months even without further light exposure.
Q: Can I wear this watch while swimming or snorkelling?
A: Yes. With 100-metre water resistance, the PRG-340-3DR is suitable for recreational swimming, snorkelling, and surface water sports. Avoid operating the buttons underwater and ensure the crown is properly secured before water exposure. It is not rated for scuba diving with compressed air equipment.
Q: How accurate is the digital compass in different locations?
A: The digital compass provides directional readings with regular calibration. Magnetic declination can be adjusted manually to account for the difference between magnetic north and true north in your location. For optimal accuracy, perform compass calibration away from magnetic interference sources such as electronic devices or metal structures.
Q: What is the low-temperature resistance feature?
A: The watch is engineered to remain fully functional in temperatures as low as -10°C (14°F), ensuring reliable operation during alpine expeditions, winter hiking, or cold-weather activities where standard watches may experience display sluggishness or temporary failure.
Q: Does the watch require manual time setting when travelling between time zones?
A: The world time function covers 48 cities across multiple time zones, allowing you to quickly reference local times in different regions. Time adjustments are manual — simply select your current city code to update the displayed time accordingly.
Q: Is the resin strap comfortable for all-day wear?
A: The lightweight resin construction (total watch weight 54g) and ergonomic strap design ensure comfort during extended wear. The material is flexible, hypoallergenic, and resistant to perspiration and UV degradation, making it ideal for active outdoor use.
Warranty
- This watch is covered by a 1-year international Casio manufacturer's warranty from the date of purchase when bought from an authorised retailer
- The warranty covers defects in materials and workmanship under normal use conditions
- Warranty coverage includes the movement, case, and original strap or bracelet as supplied by the manufacturer
- The warranty does not cover normal wear and tear, including scratches, strap deterioration, or cosmetic aging of resin components
- Battery-related service, solar cell replacement, and routine maintenance are excluded from warranty coverage
- Damage resulting from accidents, improper use, unauthorised modifications, or water damage due to misuse (such as operating buttons underwater) is not covered
- To validate warranty service, retain your original proof of purchase from Cassims & Co. and contact us for authorised service procedures
- Warranty service must be performed by Casio-authorised service centres — unauthorised repairs void the warranty
Care Guide
- Rinse the watch with fresh water after exposure to saltwater, chlorine, or perspiration to prevent residue buildup on the resin case and strap
- Dry thoroughly with a soft lint-free cloth, paying attention to areas around the buttons and band keeper
- Avoid exposing the watch to extreme heat sources (saunas, hot surfaces, direct prolonged sunlight in closed vehicles) as excessive heat can degrade resin components
- Perform compass calibration regularly, particularly if the watch has been near strong magnetic fields or if directional readings appear inconsistent
- To maintain optimal solar charging, expose the watch dial to natural or bright artificial light periodically — avoid prolonged storage in complete darkness
- Do not operate the buttons or crown while the watch is wet or submerged to prevent water ingress
- Store the watch in a cool, dry location away from direct sunlight when not in use to preserve resin elasticity and colour vibrancy
- If the resin strap develops surface dirt or staining, clean gently with a soft brush and mild soap solution, then rinse and dry completely
- Check the strap regularly for signs of wear, cracking, or hardening — contact our service team if replacement is needed