One of the watches was a personalized Rolex from his "John Wick" film series.
They were taken as part of a broader wave where crime rings from South America were burglarizing homes in Los Angeles, authorities said. The watches later turned up in Chile.
Rolex stolen from Keanu Reeves' LA home turns up in Chile
Reeves sent a handwritten letter to the FBI that reads, in part: "Thank you so much for all your effort, dedication, professionalism and cross-border cooperation."
Meanwhile, Chilean police are working with multiple agencies to get more items returned to the U.S.