Openworked Roman Architecture
Skeletonized bridges form the oversized Roman numerals, merging the structural movement components with the Santos visual language.




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Premium materials, precision engineering and a refined finish you can feel from the moment you put it on.
The Santos de Cartier Skeleton reference WHSA0009 reinterprets the collection’s iconic square architecture through a darker and more technical expression.
Its black ADLC-treated steel case frames an openworked display where the Roman numerals form part of the movement’s structure, allowing the mechanics to become the visual identity of the watch.
Paired with a black alligator leather strap and Cartier’s signature blue crown detail, the result balances high-watchmaking character with a modern monochromatic presence.
Skeletonized bridges form the oversized Roman numerals, merging the structural movement components with the Santos visual language.
A dark ADLC treatment gives the steel case a stealthier, more contemporary appearance while preserving the familiar Santos geometry.
The manually wound movement emphasizes direct mechanical interaction and keeps the openworked architecture at the center of the design.
The seven-sided crown is finished with a blue synthetic spinel, providing Cartier’s classic color accent against the dark case.
A black alligator leather strap complements the ADLC case and brings a refined contrast to the technical skeletonized display.
The sapphire crystal provides a clear view of the openworked movement while supporting the watch’s everyday durability.
New Condition
The timepiece is presented in new condition. Please use the product photographs as the visual reference for the individual watch and included presentation.

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