The Omega 580 is a mechanical watch movement that features a pin-lever escapement and a stem mechanism without a setting-lever spring. In some late samples, the hairspring terminal is glued. It is worth noting that the train and hand gear are driven separately by the barrel in a peculiar manner. This movement offers various functions, including manual wind, sweep seconds, and a digital display showing the minute and jumping hour. The Omega 580 utilizes a pin lever, and it was commonly used around 1975.