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 calibre, 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. Launch upon an exceptional partnership with Lamborghini Squadra Corse, this timepiece was designed following the same supercar codes and is made of C‑SMC carbon, a composite material based on the same technology as that used for Lamborghini cars. When visionary engineers meet with incredible watchmakers.


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

components in this calibre


hours of power reserve


BAR - Water Resistance

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

  • ReferenceRDDBEX0624
  • Case size: 45mm
  • Case:Multi-layer carbon
  • Dial:Skeleton dial with C-SMC carbon, black PVD, orange and white flange, rhodium plated indexes filled with white luminous SLN, black PVD 18K Gold hours and minutes hands with orange transfer and black luminous SLN tips, orange seconds hand.
  • Water Resistance:5BAR (50 m)

Strap & Clasp

  • Strap:Bi material strap with black rubber base and black alcantara® inlay, orange stitching
  • Clasp:Titanium black DLC, adjustable folding buckle


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