The Tissot PRX has become one of the most talked-about watches in recent years. With its retro 1970s design, integrated bracelet, and affordable pricing, it’s no surprise it became a favorite for style-conscious collectors and first-time Swiss watch buyers alike.
But in 2025, Tissot is setting its sights on the future of watchmaking—and the PRC 100 Solar is leading the charge.
This new solar-powered model is not just a modern take on a classic from the mid-2000s. It’s an innovative, eco-friendly, and design-driven alternative to the PRX that deserves serious attention.
Let’s take a closer look at why the Tissot PRC 100 Solar might be the best everyday Swiss watch you’ve never heard of—until now.
🌞 What Is the Tissot PRC 100 Solar?
Solar-powered watch with a bold, modern design
The Tissot PRC 100 Solar is a stylish 39mm Swiss-made timepiece powered by light—both natural and artificial. Using Tissot’s Lightmaster Solar Quartz movement, this watch charges through almost invisible solar panels built beneath the dial.
Unlike the PRX, which runs on either quartz or the mechanical Powermatic 80 movement, the PRC 100 Solar is all about sustainability, reliability, and low-maintenance living.
You simply wear it, expose it to light, and it continues to run. No battery replacements. No winding. Just a beautiful, accurate Swiss watch that powers itself.
⚙️ How Does the Lightmaster Solar Movement Work?
High-efficiency solar charging and energy storage
The movement inside the PRC 100 Solar collects light from the dial and transforms it into energy. This energy is stored in a rechargeable accumulator, which can power the watch for several months, even in total darkness.
This means you don’t have to worry about it dying overnight or while in storage. As long as it receives regular exposure to light, you’re good to go.
In fact, many solar-powered watches can run for up to six months on a full charge. That’s longer than many automatic watches can last off the wrist.
🔋 Smart Energy Management
Eco-mode and power-saving features
The PRC 100 Solar is designed with smart power-saving features. For example, when the battery is low, the seconds hand might skip in 2-second intervals to let you know it’s time to charge—just like many other solar quartz systems used by Seiko and Citizen.
This low-power indicator ensures you’re never caught off guard, and it protects the watch’s long-term health by preventing complete power drainage.
🧭 Sustainable and Low-Maintenance Timekeeping
No battery changes = less waste
Battery changes are one of the most common reasons watches end up neglected or damaged. With the PRC 100 Solar, you eliminate that hassle. Over time, this also means less environmental waste—no used batteries, no chemical disposal, no extra trips to the watch shop.
This makes it an excellent choice for eco-conscious consumers who still want the look and feel of a premium Swiss timepiece.
💎 Bold Design That Stands Out
Round case with dodecagon bezel and sunray dial
One of the standout features of the PRC 100 Solar is its distinctive design. While the PRX has a flat, retro-cool look, the PRC 100 goes for a more architectural, contemporary aesthetic.
It features a classic round case with a dodecagonal bezel—a 12-sided geometric shape that gives the watch a powerful wrist presence. The sunray dial reflects light beautifully while helping charge the solar panels underneath.
It’s the kind of watch that looks good with both business casual and weekend wear.
💦 Water Resistance and Durability
100m water resistance makes it adventure-ready
The Tissot PRC 100 Solar is more than just a pretty face. With 100 meters (10 ATM) of water resistance, it’s built for real-life wear.
Whether you’re out in the rain, swimming, or simply washing your hands, this watch can handle it. It’s ideal for people who want a watch they don’t have to baby.
👑 Sapphire Crystal with Anti-Reflective Coating
Premium durability and clarity
The PRC 100 Solar features a scratch-resistant sapphire crystal—the same material found in luxury Swiss watches. It also includes anti-reflective coating, making the dial easier to read in bright sunlight.
This not only improves daily usability but also complements the solar function by allowing more light to pass through the crystal into the dial.
🎨 Five Stylish Variants, With More Coming Soon
Different colors, straps, and sizes
Currently, the PRC 100 Solar is available in five styles, all in 39mm diameter:
- Sunray silver dial on steel bracelet
- Deep blue dial on steel bracelet
- Brown leather strap edition
- Full black dial with matching black strap
- Steel case with sport accents
Later this year, Tissot plans to release 34mm versions—perfect for smaller wrists or those who prefer a more subtle look. These will include PVD rose gold two-tone and PVD yellow gold styles, adding even more versatility to the line.
🔧 Modular Movement and Easy Servicing
Designed for long-term ownership
While many quartz watches are discarded when something goes wrong, Tissot’s Lightmaster movement is likely modular and serviceable, meaning it’s built to last. Whether you need a replacement capacitor or want to clean the internal parts, it’s designed for repair, not replacement.
That’s a major plus for sustainability and long-term value.
🔄 A Natural Upgrade from the Tissot PRX
More than just a style statement
If you already own the PRX and love its look but want something more practical, the PRC 100 Solar could be your perfect upgrade.
It’s still affordable. It’s still Swiss-made. But now, it’s powered by the sun, not a battery or mechanical rotor. It’s a watch for people who care about function, convenience, and the planet—without compromising on design.
🏁 Final Verdict: Why the Tissot PRC 100 Solar Is Worth It
The Tissot PRC 100 Solar is more than just an evolution of the PRX—it’s a statement about where watchmaking is going. Clean energy. Smart engineering. Durable materials. All packed into a stylish, everyday watch you can wear anywhere.
For those who want:
- A Swiss-made timepiece
- With solar-powered convenience
- Sustainable features and low maintenance
- Stylish, bold design
- And great value for money…
…the PRC 100 Solar is a clear winner.
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