Roger Dubuis Excalibur Blacklight Spin-Stone™ Monobalancier


Roger Dubuis Excalibur Blacklight Spin-Stone™ Monobalancier
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Born to stand out. Never afraid to shine. As an innovator who ignites new pathways of expression and craftsmanship, Roger Dubuis has unleashed the full potential of colourful luminescence with the new Excalibur Blacklight Spin-Stone™ Monobalancier. This inventive timepiece takes the Maison’s watchmaking to unconquered limits, where every detail has a scintillating effect.

Roger Dubuis Excalibur Blacklight Spin-Stone™ Monobalancier

The Blacklight collection has already cemented an iconic reputation for its mastery of radiant aesthetics and excelled performance. With the latest generation now in the spotlight, the visionary Spin-Stone™ edition takes another bold step forward. Powered by the Roger Dubuis RD720SQ calibre, and glowing with artistic originality, this is a watch that demands attention.

  • Roger Dubuis Excalibur Blacklight Spin-Stone™ Monobalancier
  • Roger Dubuis Excalibur Blacklight Spin-Stone™ Monobalancier

Crafted with Sublime Innovation

Instantly, the eye is drawn to the vivid spinels that adorn this Hyper Horology™ creation. Graded from red to blue, and coated with Super-LumiNova™, each astonishing spinel is always shining in full colour – whether by day, by night, or under UV light. This multi-toned effect gives the watch its chromatic look, and perfectly showcases Roger Dubuis’ enduring dedication to the intricate art of luminescence.

To achieve the exact shades, uniformity, and luminescence desired, each spinel has been synthetically grown.  A challenging technique that ensures colour and light blend perfectly to attain the most flawless results.

Roger Dubuis Excalibur Blacklight Spin-Stone™ Monobalancier

Setting this watch apart with true innovation are the powerfully visible spinels that encircle the bezel and flange and take the name of Spin-Stones™. This world premiere stone-cut is patent-pending, and yet again demonstrates the Maison’s ability to exploit aesthetic design in its most spectacular form. Cleverly sculpted with their own signature curves and sharp angles, each Spin-Stone™ is a work of originality and is a testament to the exacting skill of innovative watchmaking.

Meanwhile, the calibre’s eye-catching framework is comprised of its own 3D spinels. These colourful micro-beams of light reach out to form the branches of Roger Dubuis’ iconic star – which is neatly punctuated at its heart by a naturally fluorescent diamond. Proving that no detail is ever neglected, this carefully selected stone adds one final, yet essential, touch of brilliance.

Roger Dubuis Excalibur Blacklight Spin-Stone™ Monobalancier

An Obsession with Performance

Balancing aesthetics and performance, the automatic Roger Dubuis RD720SQ calibre has an increased power reserve of 72 hours and an optimized micro-rotor to minimize the vibrations. To further improve stability, the balance wheel inertia has been doubled – making the watch less sensitive to shocks.  

Yet the improvements don’t stop there. In a quest for greater efficiency and energy transmission, even the shape of the escapement has been enhanced, paired with diamond-coated silicon pallet-stones and a new lube. This display of Roger Dubuis’ obsessive engineering is brought together with hand-finished quality and meticulous care – all resulting in the Poinçon de Genève certification, one of the most demanding signatures of fine watchmaking. 

Roger Dubuis Excalibur Blacklight Spin-Stone™ Monobalancier

Versatility meets Exclusivity

While audacious colours define the Excalibur Blacklight Spin-Stone™ MB, the balance of additional materials provides a striking contrast. To inject sophistication, the 42mm case is made with the long-lasting hue of Eon-Gold™ and paired with an embossed white calf leather strap. Never static, the Maison has also allowed personal style to flow, with a versatile quick-release system that enables the strap to be switched in seconds.

Welcome to the most colourful and luminous expression of Roger Dubuis so far. Limited to just 28 pieces, the Excalibur Blacklight Spin-Stone™ Monobalancier is a marvel within the world of haute horology. Not only for its exclusive number, but for the creative and ground-breaking mindset that sets it apart. Yet again, Roger Dubuis has arrived at the crossroads where craftsmanship, innovation, and performance meet. A combination that masterfully guides the Maison towards the pinnacle of Hyper Horology™.

For those who are fearless in their approach to life, this breathtaking timepiece is the ultimate match. Ambitious. Iridescent. Unmistakeable. The finest way to experience Hyper Horology™ at every hour of the day or night.

Roger Dubuis Excalibur Blacklight Spin-Stone™ Monobalancier

Roger Dubuis Excalibur Blacklight Spin-Stone™ Monobalancier Technical Specifications

Reference RDDBEX0950 – $154,500 Boutique Exclusive, Limited edition of 28 pieces

The skeleton calibres manufactured by Roger Dubuis in Geneva are the essence of the expressive singularity of the Excalibur collection. Complying with one of the most respected certifications of Haute Horlogerie, the Poinçon de Genève, the Excalibur watches are designed like contemporary works of art.
Every single component being finished by hand, the watches are symbols of passion. The work of hyper-skilled craftsmen is at the forefront of each watch with a direct view on the creative mechanics making these pieces more alive than ever.

Specific highlights

WORLD PREMIERE: the Excalibur Blacklight Monobalancier is the first timepiece to be set with curved and luminescent coloured synthetic gems SPINSTONE TM on the bezel and on the flange, displaying red to blue rainbow.
Blacklight microbeams turn tri-dimensional to fit our iconic star shape, and are enhanced by coloured SLN to glow by night and under UV light.


• RD720SQ
• MOVEMENT ENERGY: Automatic, self-winding
• COMPLICATION: Monobalancier
• CALIBER: A calibre with improved performances: increased power reserve up to 72 hours thanks to a new geartrain toothing and escapement optimization through its geometry. Improved durability thanks to new lube, and increased precision thanks to 4Hz frequency.
• FINISHING: Shot-blasted, circular-grained and trued-up main plate and bridges with NAC coating and pink gold
• FUNCTIONS: Hours, minutes
• FREQUENCY: 4 Hz / 28’800 Vibrations per Hour
• THICKNESS: 5.95 Millimeters


• EON gold* case
EON goldbezel set with curved synthetic sapphires SPIN-STONE TM in gradient hues with luminescence EON gold crown
Sapphire crystal with anti-reflective coating
EON gold* open case back with sapphire crystal
• DIAMETER: 42 Millimeters

*EON GOLD TM is a specific 750/1000 5N gold alloy that is more resistant to tarnishing when exposed to extreme conditions.


• Pink gold plated double surface flange set with curved synthetic spinels SPIN-STONE TM with gradient hues. Polished and pink gold plated hourmarkers filled with black SLN in the centre.


• Triple surface hands in pink gold 750/1000 with satin brushed finish on the tilted surfaces and shot-blasted finish on the flat grey surface, SLN tips.


• According to our non-exotic policy, the Excalibur collection is adorned with a premium calf leather strap, built-in volume to follow the design of the case and the movement.
The strap is interchangeable thanks to Quick Release System.


• Pink gold cover with titanium blades, triple folding, interchangeable with Quick Release System – QRS

The rush of adrenalin, a pounding heart, the sure and certain knowledge that something is about to happen: ENTER THE FUTURE OF HYPER HOROLOGY™. Impertinent, excessive and slightly mad, this is Roger Dubuis. Solidly sustained by an integrated Manufacture, an innovative spirit, and a flagrant disregard for convention, this is what Roger Dubuis is all about! Laugh, scream, roar, and above all, create… for an exclusive tribe that believes in the philosophy of living larger than life at every turn. Inspired by other cutting-edge industries and out-of-the-box designs to prove, time and time again, that Roger Dubuis is unquestionably the most exciting way to experience Hyper Horology™.


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