Harry Potter The Time-Turner Hermione Sterling Silver Noble Collection

How did Hermione manage to keep up with all her lessons in her third year at Hogwarts? Thanks to her Time Reverser, of course! She also used it with Harry to save Buck and Sirus Black from certain death.
The pendant measures 3.5 cm in diameter and the chain is 45 cm long. The rings rotate on different axes, and the central solid circle pierced with stars contains a real miniature glass hourglass. It is made of 925 sterling silver.