A German-made Wehrle wind-up alarm clock, model Alert. Round brass-tone metal case with a carrying handle and two feet, a black dial with cream Arabic numerals and hands, and two subdials - an alarm-set dial above centre and a seconds dial below. "WEHRLE" and "ALERT" are printed on the dial.
Used and working well. The case shows tarnish and patina consistent with age.
Please check the photos carefully - they are part of the description and show the exact cosmetic condition.