A Collector’s Guide to the Cartier Ballon Bleu

When Cartier released the Ballon Bleu in 2007, it took a slightly different approach to the classic round dress watch by placing the famous blue cabochon crown in a protective “bubble,” or loop, on the side of the case. The unique silhouette was, and still is, very on-brand for Cartier, which is well known for its geometric and sometimes even avant-garde case shapes. Still, the Ballon Bleu has proven timeless enough to earn a spot as a pillar model within Cartier’s broader portfolio, where it currently serves as the brand’s signature round dress watch alongside other legendary collections like the Tank, Panthere, and Santos.

Over the past two decades, Cartier has released several variations of the Ballon Bleu de Cartier, from classic stainless steel watches in several sizes to sleek, black PVD-coated models and limited-edition platinum watches. We won’t cover every model ever made in this article, but we will go over everything you need to know about the collection, including an overview of its features.

What is the Cartier Ballon Bleu de Cartier?

The Cartier Ballon Bleu, which translates to “blue balloon” in English, takes its curious name from the crown tucked neatly inside a tiny ring (“balloon”) on the right side of the bezel. The crown is set with Cartier’s signature blue cabochon, hence the name.

The design is fascinating: the crown almost appears to float within the round, pebble-shaped case, yet the bezel still protects it, making the watch as functional as it is striking.

Most Cartier Ballon Bleu de Cartier watches feature a rounded, high-polished bezel that seamlessly integrates with the crown-protecting bubble. However, some models also feature decorated bezels, like the diamond Cartier pictured above. The dial follows the usual Cartier design codes. Bold, black Roman numerals mark the hours, while blued steel sword-shaped hands circle the face.

Variations exist, of course. For example, some swap the Roman numerals entirely for glittering diamonds, and others feature dressier silvered applied Roman numerals.

Cartier Ballon Bleu Sizes and Movements

Today, the collection consists primarily of simple models, with either a date on the dial or a time-only configuration. However, it has also been home to more complicated iterations in the past, including the Cartier Ballon Bleu Tourbillon released in 2008, the Cartier Ballon Bleu Chronograph a year later in 2009, dual times models, and moon phases in 2016. More recently, in 2025, Cartier released the Ballon Bleu de Cartier Day/Night with a dazzling 24-hour indicator at 10 o’clock.

Common Movements:

• Calibre 1847 MC: This in-house movement (Manufacture Cartier) is named after the year Cartier was founded. Cal. 1847 MC is an automatic movement used in larger models like the Cartier Ballon Bleu de Cartier 42mm.
• Calibre 1853 MC: Is an automatic Cartier movement often found in the 33mm and 36mm Ballon Bleu de Cartier. “1853” refers to Cartier’s first year of watchmaking.
• Quartz: Cartier uses quartz movements mostly for smaller watches, like the 28mm Ballon Bleu de Cartier.
• Manual Wind: Cartier has outfitted some Ballon Bleu watches in the past with hand-wound movements, such as the caliber 430 MC extra-thin movement developed in 1996.  

Design options range from everyday stainless steel models to two-tone and full precious metal watches.  From there, sizes run the usual Cartier gamut, with options for both men and women, ranging from 28mm to 42mm in the current production lineup.  Cartier recently discontinued all but one of the 28mm models, leaving a single stainless steel model in production.

In 2021, the brand also added a 40mm model to fill the gap between the 36mm and 42mm watches.  However, that size no longer appears in the regular production lineup for the US website.

Below is a general overview of the different design options for the Cartier Ballon Bleu (discontinued and current production):

• Materials: Stainless steel, steel/yellow gold, steel/rose gold, PVD-coated stainless steel, white gold, yellow gold, rose gold, platinum
• Case Sizes: 28mm, 33mm, 36mm, 37mm(Moon Phase), 39mm (Flying Tourbillon), 40mm, 42mm, 44mm (chronograph)
• Depth rating: 30 meters
• Movement: Mechanical, quartz
• Complications: time-only, time-and-date, chronograph, tourbillon, dual time, moon phase, day/night

Famous Cartier Ballon Bleu de Cartier Wearers

It didn’t take long for the Ballon Bleu de Cartier to reach the wrists of top celebrities and other successful, influential people after its release in the late 2000s. Sophia Vargara, Jennifer Love Hewitt, and Johnny Depp are just a few.  The public figure most often linked with the curious watch, however, is none other than Catherine, Princess of Wales, who is often photographed pairing her famous 12-carat sapphire ring with a 33mm stainless steel Ballon Bleu de Cartier.

Final Thoughts

Part of Cartier’s appeal is its unique approach to shaped watches.  Even round timepieces like the Ballon Bleu, which the brand describes as “an original vision of roundness,” are anything but ordinary. They stand the test of time and are backed by two decades now of solid market appeal and reliable movements.  What began as a fresh take on the traditional round dress watch has become an important part of Cartier’s modern watchmaking legacy.