Buddy Holly's wife, Maria Elena Holly, will auction several items of the rock 'n' roll legend's, including the watch he was wearing when he died in 1959.

Holly wore a diamond-and-white gold Omega wristwatch, a gift from his wife, "the day the music died" on Feb. 3, 1959, when he and singers Ritchie Valens and J.P. "The Big Bopper" Richardson were killed in a plane crash in Iowa. Holly was 22.

Maria Elena Holly married the singer in August 1958, just months before the crash. Holly proposed on their first date.

She will auction the watch, unreleased music recordings, his passport and other personal items at Heritage Auction Galleries and Auctioneers in Dallas on April 14-15.

Read more about Buddy Holly's diamond watch at http://www.napavalleyregister.com.