The piece in question is the two-tone Cartier French Tank watch, and Meghan admitted that she had long "coveted" and eventually "splurged" on the iconic piece after a huge professional moment in her acting career, and got a special engraving on the back of the watch.
This includes her choices of accessories, and her enviable jewellery collection - which features one piece that comes with an extra special meaning and will one day be handed down to her daughter, Princess Lilibet, three.
Princess Lilibet in line for £7,000 heirloom that was beloved by Princess Diana Meghan, Duchess of Sussex is something of a style icon, with royal fans always eagerly awaiting the looks she debuts for high-profile events.
Ever since Meghan first got this piece - worth £7400 - she has planned to one day pass it on to her daughter, even long before she met her now-husband, Prince Harry.
And she might even have two Cartier tank watches at some point because Harry gave Meghan another version of the piece that comes with a sentimental backstory.