RALF TECH WRB Original WRB 1006

Historical background

The iconic look of the so-called California Dial is rooted in a time when functionality was paramount: in the 1930s, pilots and sailors sought the quickest possible orientation aids, and the unusual mix of Roman and Arabic numerals proved particularly practical. This nominal heritage — a design that delivers both readability and character — gives the new WRB edition a historical weight without slipping into pure retro kitsch.

Origin and identity

The WRB, which RALF TECH initially developed for military divers in 2019 and has offered for civilian use since 2020, presents itself in this edition as a model with a clear WRB identity: compact, robust, and with its own expression derived from proportion and detail. The series limited to 100 pieces combines the sober claim of a tool watch with artisanal elements, demonstrating how tradition can be seriously continued.

Dial and readability

The matte, deep black dial of the California version works with a warm luminous tone, as hands and indices are coated with Old Radium luminous material, which appears discreet during the day and provides clear orientation at night. This combination of classic appearance and modern luminous technology makes the dial more than just a surface: it becomes a stage where form and function remain permanently balanced.

Case construction and wearing comfort

The satin-finished case made of 316L-Stainless steel measures a compact 39 millimeters in diameter and, thanks to the moderate height, sits comfortably on the wrist; the screwed crown at 4 o'clock also ensures a calm wearing experience and additional protection against accidental manipulation. In practice, this construction proves to be well thought out: it feels solid without appearing bulky, and the flatly domed, internally anti-reflective sapphire crystal with a thickness of 3.5 mm emphasizes the high-quality overall impression.

Functional details

The WRB remains a true diver: the unidirectional rotating bezel with 120 clicks and aluminum insert as well as the water resistance according to ISO standard of 200 m are not mere labels but practical prerequisites for use. The package is complemented by a screw-down case back, which is engraved and numbered — a clear sign that this is a limited, carefully documented piece.

Mechanics and reliability

Beneath the dial ticks the RTA003®, an automatic movement based on the Seiko NH35, which offers around 40 hours power reserve and is valued for its robust everyday suitability. This caliber fits the idea of the WRB: it delivers reliable precision, can be serviced worldwide, and thus complements the physical reliability of the case with a technically solid heart.

Straps and adaptability

The supplied straps reflect the duality of elegance and readiness: a hand-stitched black vintage calf leather with beige contrasts gives the timepiece a warm, classic appearance, while the additional Tropic rubber strap instantly transforms the watch into a sporty, waterproof instrument. The interplay of these two options allows the watch to be adapted to everyday life or adventure with just a few moves.

Conclusion

The WRB Automatic California achieves the rare balancing act between historical reminiscence and modern usability: it takes up an iconic dial motif, gives it new meaning through contemporary materials and thoughtful detail solutions, and remains unmistakably a toolwatch with ambition. Those looking for a compact, characterful watch with genuine background and solid technical values will find a convincing offer in this limited edition.

Specifications

• Automatic movement RTA003® (based on Seiko NH35) with up to 40 hours power reserve
• 316L satin-finished stainless steel case, Ø 39 mm, screw-down crown at 4 o'clock
• Water-resistant up to 200 m / 660 ft, according to ISO standard 6425
• Black dial with SuperLuminova® Old Radium for perfect readability
• Domed and anti-reflective sapphire crystal, 3.5 mm thick
• Unidirectional rotating bezel, 120 clicks, aluminum insert with luminous marker
• Screw-down case back, engraved and numbered
• Hand-stitched black vintage calf leather strap with beige stitching plus Tropic rubber strap
• Limited edition of 100 pieces, made in France