Harry Potter - The Time-Turner - Hermione - NN7017 : An authentic recreation of Hermione s Time-Turner featured in the movie Harry Potter and the Prisoner of Azkaban . The Time-Turner is centered with a working miniature hourglass and its inner rings rotate. Plated in 24 karat gold, measures 1 3/8 inches in diameter. Chain measures 18 inches. Comes complete with a display.