Pockety (Mayuri's Pocket Watch)

Mayuri Shiina's pocket watch. It's an antique pocket watch that her grandmother gave to her, and it's very precious to her.

Role
In the Alpha Attractor Field, Mayuri looks at her watch moments prior to her death and remarks on how it has stopped working. From Okabe's perspective, those remarks symbolize that he has failed and Mayuri is about to die again.

It's interesting to note that this symbolism only exists in the Steins;Gate anime. In the visual novel, her death isn't symbolized by her watch ceasing to function. This also applies to Steins;Gate Elite—her watch is not used as symbolism in this version of the story either.
 * Pockety.jpg