- Originally debuting in 1929, the Cartier Tank Obus is celebrated for its departure from the traditional Tank aesthetic, featuring an unusual shape and styling. Unlike the iconic rectangular profile of the Tank, the Obus is a square timepiece distinguished by its unique bullet-shaped lugs—“Obus” translates to "shell" in French—contrasting sharply with its corners.

- From 1998 to 2008, Cartier revisited their archives to create the highly sought-after CPCP (Collection Privée Cartier Paris) collection, reviving historic designs that had been dormant for years, including the Cintrée and the Tank Chinoise. However, the Tank Obus often flew under the radar, frequently overlooked by collectors. The current iteration offers a fresh perspective on this remarkable collection.

- This Obus Skeleton is part of a limited edition run of just 100 pieces. It retains the signature Obus case shape, but boasts a striking skeletonized dial and movement, creating a unique aesthetic that sets it apart from other Obus models with more traditional Cartier dials.

- The exhibition caseback showcases the hand-engraved skeletonized bridges within its manual-wind movement, making this Obus one of the most stylistically unique Cartier models from the past few decades. Its rarity makes it an ideal acquisition for any watch collector, whether a Cartier devotee or a watchmaking enthusiast.

- The present example from circa 2004 is offered with its full set of accessories and is well-preserved in excellent overall condition.