The ETA 956.402 watch movement is a quartz chronograph that offers precise timing with a 1/10-second accuracy. It includes multiple chronograph functions, namely a 60-second counter, a 30-minute counter, and a 12-hour counter. The movement utilizes four quartz controlled stepper motors to ensure accurate and reliable operation. Additionally, it features a sub-second indicator and a quickset date function. The ETA 956.402 movement was commonly used in watches around the year 2003.