Roger Dubuis

Excalibur Blacklight

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Excalibur Blacklight
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Roger Dubuis is going over the rainbow with a new variation of the Excalibur Blacklight edition. Set with round colored gems, the case houses the skeleton automatic calibre decored with a micro‑sapphire structure tainted in all colors of the rainbow. Under UV light, the timepiece transforms into a beautiful and modern object revealing its inner structure. Switch on the UV lights and it will glow!

Roger Dubuis_Excalibur_Blacklight_RDDBEX0804


  • RD820SQ Automatic skeleton watch with micro-rotor
  • Self-winding mechanical calibre
  • Power reserve: 60 hours
  • Case: 42mm ,
  • Limited edition of 28 pieces
  • Stamped with the Poinçon de Genève

components in this calibre


hours of power reserve


hours of manufacturing dedicated to this calibre

Poinçon de Genève

The ultimate guarantee of the finest traditional watchmaking. Roger Dubuis makes it a priority, when producing this timepiece, to follow only the most demanding & strictest criteria for quality and craftsmanship.

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Automatic skeleton watch with micro-rotor

The first automatic skeleton watch of Roger Dubuis with micro-rotor movement

About this calibre

Technical specifications

Inner & Outer casing

  • ReferenceRDDBEX0804
  • Case size: 42mm
  • Case:
  • Dial:Rhodium plated flange with transfered texts and minute track, Rhodium plated and polished hour markers. Micro-rotor bridge set with round diamonds.
  • Water Resistance:3BAR (30 m)

Strap & Clasp

  • Strap:Rubber strap
  • Clasp:White gold, double folding


  • Automatic skeleton watch with micro-rotor
  • Power reserve: 60 hours
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