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Excalibur Spider
Aventador S

Ref: RDDBEX0653
Carbon, Black
Limited edition 8 pcs.

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 Squadra Corse, 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.


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

This exclusive skeleton double sprung balances is directly inspired from the supercar world and has been specificaly developped with our partner Lamborghini Squadra Corse.

The RD103SQ caliber works at a 2 x 4 hz frequency, giving it a better resistance to gravity effects and therefore a higher precision. That is the reason why, the watchmakers at Roger Dubuis have chosen to develop a jumping second in order to emphasize the ultimate precision of this caliber.

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Reference : RDDBEX0653
  • Size : 45mmmm
  • Water Resistance : 5BAR (50m)
  • Material : 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.
  • Material : Bi-material strap with black rubber base and black alcantara inlay, green stitching
  • Material : Titanium black DLC, Adjustable folding buckle - Quick release system
40 hours of power reserve
312 components in this calibre

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About Complication

An automatic timepiece is a mechanical watch set with either an oscillating mass or a micro-rotor which, thanks to the natural wrist movement winds itself mechanically. Therefore, if worn everyday, the timepiece doesn’t need hand winding. 

A manual timepiece is a mechanical watch that needs to be hand-wound to function. The several mouvements have a “power reserve” that determine the length of time the watch is able to function with its full wound capacity. Especially appreciated from specialist of “Haute Horlogerie”.

A tourbillon is an addition to the mechanics of a watch escapement. In a tourbillon the escapement and balance wheel are mounted in a rotating cage, in order to negate the effects of gravity when the timepiece (thus the escapement) is stuck in a certain position. 

A masterpiece from Roger Dubuis. The achievement of 7 years of research and 40 people included in the production process of the watch. A timepiece working with 4 balance sprung and 5 differentials, for an ultimate precision. A watchmaking achievement that looks for the untouched territories of mechanical accuracy. 

The minute repeater is a timepiece that once mechanically pushed, rings the hours, quarters and minutes of the watch. It is an historic complication that is known for the mechanical achievement of making a mechanical timepiece ring. 

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Roger Dubuis Manufacture

Every Roger Dubuis timepiece is built by hands at the manufacture and headquarters in Geneva, Switzerland. You can reach us there, Monday to Friday 09:00 AM - 5:00 PM, for brochure request, visits, model and general queries.

Manufacture Roger Dubuis
Rue André-De-Garrini 2,
1217 Meyrin,
Genève, Suisse

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