- Aluminum alloy frame offers a generous, elegant and sturdy look that is ideal for a desk clock. The design is compact, stylish, and quietly sophisticated. - Large 1.5 inch nixie tubes for hours, minutes and seconds provide a clear, easy-to-read display from across the room or at a glance. - Time display only: no alarm function and no extra time-telling features, ensuring a simple, distraction-free experience. - Automatic calendar support: the week aligns automatically with the date, and the clock auto adjusts for leap years and the length of each month. - Plug-in operation with a perpetual calendar. A built-in lithium battery maintains accurate time during power outages, while the backup battery status does not appear on the dial. - Ideal use scenarios: on a home or office desk for a clean time reference; in a reception area or waiting room for visible, easy time checks; or at a retail counter, cafe or studio where a simple, legible time display is preferred without alarms.