Kardashian reportedly bought the vintage Cartier timepiece for $379,500 — more than triple the original asking price of $120,000, according to TMZ, which cited the information to anonymous auction sources.
Kennedy had been given the watch by her brother-in-law Prince Stanislaw Radziwill, according to the gossip site.
It’s engraved with the date February 23, 1963, and commemorates a hike the prince participated in to support President Kennedy’s goal of making Americans healthier.
It took place about nine months before Kennedy was assassinated.
Kardashian plans to wear the watch, not just keep it on display, sources told TMZ.
Last October, Kardashian was the victim of a $10 million-plus jewel theft in Paris, so she must be in replacement mode.