Casio Pro Trek PRJ-B001B-2

When it comes to outdoor timepieces, few names resonate as strongly as Casio's Pro Trek series. Synonymous with ruggedness, functionality, and cutting-edge technology, Pro Trek watches have accompanied adventurers, hikers, and outdoor enthusiasts on countless expeditions, reliably tracking their progress and providing crucial information in even the most challenging environments. Now, Casio pushes the boundaries further with the introduction of the Pro Trek PRJ-B001B-2, a timepiece that seamlessly blends innovation, style, and eco-consciousness.

Before we delve into the specifics of this remarkable watch, let's take a moment to appreciate the rich history of Casio and its Pro Trek lineage. Founded in 1946, Casio Computer Co., Ltd. has consistently been at the forefront of technological advancement, revolutionizing industries with its calculators, digital cameras, musical instruments, and, of course, its iconic watches. In 1994, Casio launched the Pro Trek series, catering to the needs of outdoor enthusiasts with features like altimeters, barometers, compasses, and thermometers. Over the years, Pro Trek watches have evolved, incorporating GPS, solar power, and smartphone connectivity, solidifying their position as indispensable tools for adventurers.



The PRJ-B001B-2 represents a new chapter in the Pro Trek story. It is a watch designed for those who seek to explore the world around them, pushing their limits while minimizing their environmental impact. The watch's design philosophy centers around lightweight construction, versatility, and sustainability, making it the ideal companion for long trails and ultralight hikes.

The PRJ-B001B-2 is a visual treat, showcasing a harmonious blend of ruggedness and sophistication. The watch face, rendered in a subdued dusty blue hue, evokes the tranquility of nature, while pops of fluorescent color on the numbers and bezel add a touch of vibrancy. The watch's case and bezel, crafted from a combination of resin and bio-based resin, strike a balance between durability and eco-friendliness. The use of bio-based resin, derived from renewable resources, underscores Casio's commitment to reducing its environmental footprint.

One of the most striking features of the PRJ-B001B-2 is its innovative band design. Casio has developed a unique bungee cord cloth band inspired by outdoor gear, combining the breathability and comfort of a cloth band with the adjustability and secure fit of a bungee cord. The stretchy loop cord can be easily fastened onto the hook, allowing you to wear the watch over heavy outerwear or directly on your wrist. This versatility ensures a comfortable fit in any situation, whether you're trekking through dense forests or navigating bustling city streets.



Another standout feature is the watch's first-ever rotary guard bezel in the Pro Trek line. This innovative bezel serves both aesthetic and functional purposes. When set to present a stylish angular design, the bezel covers the buttons, preventing accidental presses while you're on the move. Turn the bezel 45 degrees, and it transforms into a rounder shape, revealing the buttons for easy access to the watch's functionality. This clever design element adds a layer of versatility, allowing the watch to seamlessly transition from outdoor adventures to everyday wear.

Beneath its stylish exterior, the PRJ-B001B-2 boasts a host of features that enhance its functionality and practicality. The watch is equipped with Casio's Tough Solar technology, harnessing the power of the sun to charge its battery. This eliminates the need for frequent battery replacements, ensuring that your watch is always ready for action. Additionally, the watch features Bluetooth connectivity, allowing you to pair it with your smartphone. This opens up a world of possibilities, including automatic time adjustment, easy watch settings, access to world time cities, and even a phone finder function.

One of the most exciting features of the PRJ-B001B-2 is its ability to record your adventures. With a simple press of a button, you can log your current date, time, and position on a map within the Casio Watches app. This feature is invaluable for hikers, trail runners, and anyone who wants to keep a digital record of their outdoor explorations. You can revisit your favorite trails, discover new routes, and share your experiences with friends and family.



Weighing in at a mere 37 grams, the PRJ-B001B-2 claims the title of the lightest Pro Trek ever created. This featherlight construction ensures maximum comfort, even during extended wear on challenging hikes or treks. You'll barely notice it's on your wrist, allowing you to focus on the journey ahead.

Despite its lightweight nature, the PRJ-B001B-2 doesn't compromise on durability. The resin and bio-based resin construction offer excellent resistance to shocks and impacts, while the mineral glass crystal protects the watch face from scratches and abrasions. With its 100-meter water resistance, you can confidently wear this watch while swimming, snorkeling, or even diving in shallow waters. And if you find yourself venturing into colder climates, the watch's low-temperature resistance (-10°C) ensures it continues to function flawlessly.

The PRJ-B001B-2 is equipped with Casio's Tough Solar technology, a game-changer for outdoor enthusiasts. This innovative system harnesses solar energy to power the watch, eliminating the need for frequent battery replacements. Whether you're basking in the sun or hiking under cloudy skies, the watch's solar panel efficiently converts light into electrical energy, ensuring uninterrupted operation. With a full charge, the watch can operate for up to 7 months under normal conditions and an impressive 18 months in power-saving mode.



In today's connected world, the ability to sync your watch with your smartphone is a must-have feature. The PRJ-B001B-2 seamlessly connects to your phone via Bluetooth, offering a range of convenient functions. Automatic time adjustment ensures your watch is always accurate, while easy watch settings allow you to customize various features directly from your phone. You also gain access to approximately 300 world time cities, making it easy to stay on track when traveling across different time zones.

The PRJ-B001B-2 goes beyond basic timekeeping with its Time & Place function. By pressing a dedicated button on the watch, you can record your current date, time, and location data, which is then transferred to the Casio Watches app on your smartphone. This creates a digital log of your outdoor adventures, allowing you to retrace your steps, discover new routes, and share your experiences with others.

In addition to its innovative features, the PRJ-B001B-2 offers a range of essential functions for outdoor enthusiasts. The watch includes a 1/100-second stopwatch, perfect for timing your runs, hikes, or other activities. A countdown timer helps you stay on schedule, while five daily alarms ensure you never miss an important appointment. The watch also features a full auto-calendar, eliminating the need for manual adjustments.

When darkness falls, the PRJ-B001B-2's double LED light illuminates both the watch face and the digital display, ensuring clear visibility in any lighting condition. The Super Illuminator technology provides bright, even illumination, while the selectable illumination duration (1.5 or 3 seconds) and afterglow function further enhance visibility.



With its blend of style, functionality, and eco-consciousness, the Casio Pro Trek PRJ-B001B-2 is a watch that effortlessly transitions from outdoor adventures to everyday wear. Its compact case size (50.3 × 46 × 13.6 mm) ensures a comfortable fit on any wrist, while its versatile design complements a variety of styles. Whether you're exploring rugged terrains or attending a casual gathering, this watch is sure to make a statement.

The Casio Pro Trek PRJ-B001B-2 is priced at $160, offering exceptional value for a watch packed with features and technology. It is available for purchase through authorized Casio retailers and online stores.