Roger Dubuis

Excalibur Aventador S – Bucherer Blue Edition

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Excalibur Aventador S – Bucherer Blue Edition
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The Excalibur Aventador S “Bucherer Blue Edition” watch is the first Blue Edition of Roger Dubuis. To mark the hit, such a timepiece, fruit of the collaboration between Roger Dubuis and Lamborghini Squadra Corse and enhanced by the Bucherer touch, is the perfect match. Excalibur Skeleton Double Sprung Balance in 45mm multilayer Carbon skeleton case Natural titanium bezel with blue lines, black markings, grey and blue flange, white hands Power reserve indicator.


  • RD103SQ Double sprung balances with differential
  • Hand-wound mechanical calibre
  • Power reserve: 40 hours
  • Case: 45mm ,
  • Boutique exclusive model
  • Limited edition of 8 pieces
  • Stamped with the Poinçon de Genève

Limited edition


hours of power reserve


components in 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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Double sprung balances with differential

The first Roger Dubuis skeleton double sprung balances linked with a differential.

About this calibre

Technical specifications

Inner & Outer casing

  • ReferenceRDDBEX0730
  • Case size: 45mm
  • Case:
  • Dial:Skeleton dial with C-SMC carbon, black PVD, blue and white flange, rhodium plated indexes filled with white luminous SLN, black PVD 18K Gold hours and minutes hands with blue transfer and black luminous SLN tips, white seconds hand.
  • Water Resistance:5BAR (50 m)

Strap & Clasp

  • Strap:Bimaterial strap (black rubber base and blue rubberTech insert) with black and blue stitches
  • Clasp:Black DLC adjustable folding buckle


  • Double sprung balances with differential
  • Power reserve: 40 hours
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