The Girard Perregaux 32.29 watch movement, which was manufactured from 1975 to 1977, is similar to the 25-652 model. However, it features a balance with three spokes instead of two, as well as a larger plate recess for the lever cock. During the transition period, the old and new components were arbitrarily mixed and the signatures were seldom accurate. This movement is automatic and includes the functions of a sweep second hand, day indicator, and a date function that can be set by changing the time between 23 and 24 hours.