Roger Dubuis

Excalibur Sottozero

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Excalibur Sottozero
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Thanks to the QRS ‑ Quick Release System, the watch is delivered with one additional free strap and one additional free crown. Both are placed in a dedicated pouch inserted in the box.

Roger Dubuis Excalibur Sottozero RDDBEX0753. A single tourbillon watch inspired by Pirelli Sottozero tires


  • RD508SQ Skeleton Flying Tourbillon
  • Hand-wound mechanical calibre
  • Power reserve: 50 hours
  • Case: 45mm ,
  • Limited edition of 88 pieces
  • Stamped with the Poinçon de Genève

components in this calibre


Limited edition


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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The Roger Dubuis 508SQ skeleton single flying tourbillon is part of the highest complication in the world of Haute Horlogerie.

Skeleton Flying Tourbillon

The skeleton single flying tourbillon is part of the highest complication in the world of Haute Horlogerie.

About this calibre

Technical specifications

Inner & Outer casing

  • ReferenceRDDBEX0753
  • Case size: 45mm
  • Case:
  • Dial:Black lower and upper flange with rhodium plated indexes filled with white luminous SLN, 18K black PVD gold hands with black transfer and white luminous SLN tips
  • Water Resistance:5BAR (50 m)

Strap & Clasp

  • Strap:Assembled strap: black rubber base and black rubber inlay with stainless steel nails, grey stitching: Additional strap: black rubber base with red RubberTech inlay - Quick release system
  • Clasp:Titanium black DLC, adjustable folding buckle - Quick release system


  • Skeleton Flying Tourbillon
  • Power reserve: 50 hours
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