Ralf Tech : the military watch of elite troops and professional deep divers

Since 1996, Ralf Tech has grown from professional diving to become one of France’s most respected watchmakers. From Pascal Bernabé’s world-record dive to elite military collaborations and even space missions with CNES, its iconic models—WR1, WRX, WRV, WRB, and The Beast—are built for extreme conditions. Produced in limited series, they are now highly sought after on the pre-owned market for their toughness, exclusivity, and unique history.

The origins: WR1 and a world record

Founded in 1996 by Frank Huyghe, Ralf Tech made its first mark in professional diving. In 2005, the WR1 became legendary when it accompanied Pascal Bernabé to a record-breaking 330 meters. This achievement set the tone: RALF TECH would build watches for extreme environments, robust and uncompromising.

2011: The WRX Hybrid, a revolution

In 2011, Ralf Tech introduced the WRX Hybrid, blending mechanical reliability with electronic precision. With a 316L steel case water-resistant to 1,000 meters, it became an essential tool for divers and special forces. Its bold design and high readability reinforced its reputation.

Adopted by Commando Hubert, the Commandos Marine and RAID, the Ralf Tech WRX Hybrid spawned exclusive limited military editions, such as the WRX "A" Hybrid RAID (300 pieces). On the pre-owned market, it remains one of the most coveted Ralf Tech models.

2012: The WRV, between vintage and modern

In 2012, the Ralf Tech WRV was launched, inspired by 1970s dive watches but updated with modern technology. Its 43.8 mm cushion case in 316L steel offers 300 m water resistance. Available in automatic or electric RTE001 Long Range (up to 100,000 hours autonomy), the WRV also saw rare editions like the WRV Electric Black Operator (100 pieces).

Robust, reliable, and limited, the WRV is equally sought-after by professionals and collectors on the second-hand market.

2015: Military collaborations and the WRB

In 2015, Ralf Tech strengthened ties with the French special forces, launching the WRX Hybrid “A,” a watch both technical and symbolic. The Ralf Tech WRB First Edition – Military Version soon followed, designed for French Army divers, with a 39 mm satin-finished steel case, RTA003 automatic movement, 44-hour power reserve, and water resistance to 200 m. Delivered with Tropic and Zulu straps, it embodies rugged functionality.

The Ralf Tech Académie line (2017) and WRB (2020) expanded the range, offering elegant yet resilient designs at more accessible prices.

2022: The Beast, extreme performance

WRX C “The Beast” Electric Amphibian

In 2022, Ralf Tech unveiled The Beast, designed for extreme depths. With a 47.7 mm steel case and 4,000 m water resistance, it is among the world’s most capable dive watches. Powered by the RTM001 automatic (77-hour reserve), made in France with Pequignet, it marked a milestone in French watchmaking.

The Beast has since appeared in multiple limited editions: “Original” (black dial), “Tundra” (olive green), “Amphibian” (for amphibious ops), and “Ocean” (deep blue). Used by French Commandos Marine, it has become a benchmark for toughness and exclusivity—highly valued on the pre-owned market.

2024: The Space Millenium with CNES

In 2024, Ralf Tech announced an official partnership with CNES and French astronauts. The WRX Hybrid Space Millenium, limited to 100 pieces, features grade 1 titanium, 1,000 m water resistance, and the RTE001 “Electric” micro-hybrid movement with 12 years of autonomy. French astronaut Thomas Pesquet was seen wearing one during the Ocean Summit in Nice.

Combining sea and space, the Space Millenium embodies Ralf Tech's philosophy: robust, purposeful instruments built to last.

Today: Ralf Tech and Mostra Certification

In 2025, Mostra will become the first Ralf Tech Certified Technical Center for pre-owned watches. Our Aix-en-Provence workshop is authorized to service, restore, and maintain all Ralf Tech models beyond warranty. Services include full diagnostics, movement overhauls, water-resistance tests, regulation, and careful refinishing. Each intervention is certified for traceability and resale value.

For out-of-warranty owners, this means preserved performance, extended lifespan, and guaranteed availability of genuine parts. Pre-owned Ralf Tech watches sold by Mostra benefit from rigorous selection, clear service history, and personalized boutique support, making them reliable investments for collectors.

True to its DNA of robustness, innovation, and excellence, Ralf Tech continues to write exciting new chapters in French watchmaking.