The AcuRite Vintage Twin Bell Alarm Clock is a classic antique-styled timepiece with a wind-up mechanical timekeeping movement. Alarm clock features a traditional brass finish, durable metal case and glow-in-the-dark hour markers and hands. The twin bell design includes a mini-hammer for an extra-loud ring. Alarm time is indicated right on the dial for easy alarm setup. Extra loud ring with convenient shut-off button on the top of the alarm clock. One-year limited warranty. It's more than accurate, it's AcuRite.