- Large digital time display with hours, minutes and seconds, plus day of the week and temperature. The time is shown on a 3 inch digital tube for easy readability from a distance. - High accuracy you can rely on: clock accuracy within ±3 seconds per month. - Premium design: black aluminum alloy frame that feels substantial and elegant in any setting. - Automatic calendar and day alignment: calendar automatically follows years 2001 through 2049, with the week and month automatically adjusted. - Power and operation details: the perpetual calendar requires being plugged in to use. In power outages, a built-in lithium battery keeps time running, but the clock face is not displayed while on battery power. Use scenarios - Living room or bedroom: view time at a glance, while also seeing the day of the week and the current temperature, without squinting at a small display. - Office or reception area: large, easy-to-read digits make it simple for staff and visitors to check the time quickly, while automatic calendar reduces manual updates. - Kitchen or workshop: keep track of time and environment conditions from across the room, aiding scheduling and workflow.