A Watch for the Final Frontier

For those looking for a timepiece that can handle more than just the daily grind, Ralf Tech has introduced two limited-edition watches designed with space exploration in mind. The WRX Rockdust and WRX Stardust are not just stylish accessories; they are built to withstand the rigors of missions to Mars and the Moon, boasting an impressive 100,000-hour power reserve. That’s nearly 12 years of continuous operation, a feat rarely seen in the world of horology.

The watches, available starting March 20, 2025, cater to a specific niche: individuals who appreciate robust engineering and the allure of space travel. While most watch enthusiasts might never venture beyond Earth’s atmosphere, the Rockdust and Stardust offer a tangible connection to the ambitious goals of space exploration, mirroring the excitement surrounding NASA’s Artemis program and the ongoing private sector efforts to reach Mars.

Design Inspired by the Cosmos

The WRX Rockdust and stardust watches share a common foundation but differ in their aesthetic finishes. The Rockdust features a chocolate-grained dial reminiscent of the Martian landscape, while the Stardust boasts a matte, deep-gray dial that evokes the surface of the Moon. these design choices are more than cosmetic; they’re a nod to the environments these watches are conceptually designed to endure.

The cases of both watches are crafted from microbilled titanium, providing a lightweight yet durable armor against the elements. This material choice is notably relevant for space applications, as titanium’s strength-to-weight ratio is highly valued in aerospace engineering. This is a similar material used in the construction of the Lockheed Martin F-35 Lightning II fighter jet, highlighting its robust and reliable nature. The microbilled finish provides greater resistance to scratches and wear, preserving the look of the watch for longer.

The RTE 001 Caliber: A Hybrid Powerhouse

At the heart of the WRX Rockdust and Stardust lies the RTE 001 caliber. This is neither purely electric nor quartz but a hybrid movement. A lithium battery powers a quartz oscillator, combining the consistent energy delivery of a battery with the precision of quartz timekeeping. The result is a movement that offers exceptional accuracy and an astounding 100,000-hour power reserve. This extended lifespan dwarfs the typical 42-hour reserve of a mechanical watch or the 2-4 year lifespan of a standard battery-powered watch.

The technical innovation of the RTE 001 is a notable selling point, particularly for those who value reliability and low maintenance. In practical terms, this means the watch can be stored for extended periods without the need for winding or battery replacement, making it a practical choice for collectors or individuals who want a dependable timepiece ready for any adventure.

Unmatched Sealing Technology

Ralf Tech emphasizes the robust construction and sealing of the Rockdust and stardust watches. The movement is “encapsulated” within the case, leveraging Ralf Tech’s extensive experiance in creating watches with exceptional water resistance. This expertise was evident in their previous work with the CNES (National Center for Space Studies), the French space agency.The watch’s case back is sealed to the body using a proprietary system, requiring specialized tools for opening.

According to the brand, a Ralf Tech watch “does not need revision”. This is also to prevent any improper handling that could compromise their tested water resistance of 1000 meters. This emphasis on sealing is not just about water resistance; it also protects the movement from dust, moisture, and other environmental factors that could affect its performance, especially in harsh conditions like those found on Mars or the Moon.

The decision to make servicing require specialized tools could be seen as a disadvantage by some consumers. Counterarguments to address potential criticisms of specialist servicing include the rarity of the need for the service, and the guaranteed and tested sealing of 1000 meters.

Built to Withstand Extremes

The ruggedness of these watches extends beyond their sealing capabilities. They feature a 5.9mm thick sapphire crystal treated with an anti-scratch coating,one of the thickest available for a standard wristwatch. The overall build is intentionally robust, addressing potential weak points with a 10mm thick construction.

Furthermore, the Rockdust and Stardust are designed to function within a wide temperature range, from -50°C to +55°C (-58°F to +131°F). This range aligns with human survivability limits, ensuring the watch remains operational even in extreme environments. As Ralf tech states, “Below, you will be frozen. Beyond, roasted! enough to see, even the time to go back and forth on Mars or the Moon.”

this temperature resistance is crucial for space exploration,where temperature fluctuations can be extreme. On the Moon,for example,temperatures can range from -173°C to 127°C. While the watch is not designed to withstand these entire extremes, its specified range covers many potential scenarios, making it a reliable tool for astronauts and explorers.

Limited Availability

Each model, the WRX Rockdust and WRX Stardust, is limited to just 100 pieces, with a price tag of 2,500 euros. The watches became available on March 20, 2025. For those interested in seeing the watches in person, Ralf Tech showcased them at “Time to Watches” in Geneva, starting April 1, 2025.

The limited production run adds to the exclusivity and collectibility of these timepieces. For U.S. collectors, securing one of these watches may require prompt action and potentially international shipping. the price point reflects the quality of materials, the innovative movement, and the limited production, positioning these watches as luxury items for discerning collectors.

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