The ETA 555.422 watch movement is a quartz movement with an LCD display. It features a chronograph function that can measure intervals up to 1/10th of a second, and can track time for up to 60 seconds, 60 minutes, and 24 hours. The movement also includes a 24-hour display, a day and date function, an alarm, a light function, a stop watch, and a digital display. It operates on a quartz mechanism and has a built-in calendar. This movement was commonly used around 1985.