Roger Dubuis

Excalibur Aventador S

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Excalibur Aventador S
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First 90° double sprung balances linked with a differential, this outstanding caliber, result of Roger Dubuis’ haute horlogerie expertise, works at a 2 x 4 hz frequency, giving it a better resistance to gravity effects and therefore a higher precision. Launched upon an exceptional partnership with Lamborghini, this timepiece was designed following the same supercar codes and is made from C‑SMC carbon using the same type of carbon used to make Lamborghini’s Aventador S chassis. When visionary engineers meet with incredible watchmakers.

Excalibur Aventador S edition - Verde Mantis - Limited edition


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

hours of power reserve


components in this calibre


Limited edition

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

  • ReferenceRDDBEX0653
  • Case size: 45mm
  • Case:
  • Dial:Skeleton dial with C-SMC carbon, black PVD, green and white flange, rhodium plated indexes filled with white luminous SLN, black PVD 18K Gold hours and minutes hands with green transfer and black luminous SLN tips, green seconds hand.
  • Water Resistance:5BAR (50 m)

Strap & Clasp

  • Strap:Bi-material strap with black rubber base and black alcantara inlay, green stitching
  • Clasp:Titanium black DLC, Adjustable folding buckle - Quick release system


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