Ballon Bleu De WJBB0028 replica

In 2017, at the Salon International de la Haute Horlogerie (SIHH 2017) in Geneva, Cartier unveiled the Rotonde de Cartier Double Mystic Tourbillon Minute Repeater. The watch is particularly striking with a floating tourbillon that rotates every 60 seconds and a sapphire crystal disc that turns every 5 minutes. After a three-year break, the brand is once again launching a new model.

While the 2017 model is made of titanium (later a platinum-encrusted diamond version), the new model is crafted from 18-carat rose gold, which enhances the minute repeater function and gives it a distinct tone. The case measures 45 mm in diameter, the crown is set with a sapphire cabochon, and from the side of the dial, you can admire the ruthenium-plated bridges.

The 2017 model is powered by the 9407MC calibre, while the new model uses the 9507MC calibre, which offers a power reserve of about 84 hours. The double mystery tourbillon is positioned off-centre between 9 and 10 o’clock on the dial, while the minute repeater mechanism is set at 6 o’clock (with a pusher at 4 o’clock). Water-resistant to 30 meters, it is fitted with a grey alligator leather strap and bears the “Poinçon de Genève” (Poinçon de Genève).