What immediately sets this particular example apart is its fully diamond-set case, paired with a matching diamond cabochon crown. Cartier traditionally reserved the sapphire cabochon for its classic models, but when a watch crossed into the realm of joaillerie, the crown would often be upgraded to a diamond as well. This subtle yet important detail transforms the watch from a simple timepiece into a true piece of jewelry, aligning it more closely with Cartier’s high jewelry philosophy than with its standard production watches.

References such as 1063 are notoriously difficult to trace, and for good reason. During this period, Cartier frequently used internal or batch-specific reference numbers for smaller, gem-set models, many of which were never widely published or standardized. As a result, these Mini Tanks exist almost as hidden variations within the broader Tank family, distinguished not by widespread recognition, but by their configuration, craftsmanship, and rarity.

It is very likely that pieces like this were produced in small runs, potentially allocated to specific regions or boutiques, further adding to their obscurity today.

This particular watch, preserved on a leather strap with its original Cartier 18k deployant folding clasp and accompanied by its original box and papers, including service documentation, offers a rare opportunity to experience this lesser-known facet of jewelry watches from Cartier.

It is not only a beautifully executed Mini Tank, but also a reminder of a time when the maison produced highly refined, low-volume variations for a clientele that valued subtle luxury over visibility.

In today’s market, that quiet exclusivity is precisely what makes pieces like this so compelling. Fully serviced, she will be sold with our extensive two years of warranty.