Abstract: To provide a wrist watch with a vibration function which can more enhance the vibration effect so that even when the user is, for example, sleeping deeply, the vibration function can effectively act on the user. The wrist watch with a vibration function comprises a watch case, a box part formed at an under surface of the watch case, at least one vibration motor received in the box such that a part of the vibration motor projects from the box part, a cover formed of a flexible material and adapted to cover for positioning the vibration motor, a bottom case serving as a lower surface and having a window formed in a part of the bottom case, and a vibration source received in the case and projecting from the window in a loosely fitted state.