The ETA 1201 watch movement was developed in 1932 and features a Breguet hairspring. It belongs to a series of movements numbered from 281 to 284, with the only difference being the sizes of the pillar plates. The 283 movement incorporates several functions including a manual-wind chronograph with a 60-second and 30/45-minute capability, controlled by a pillar wheel. It also includes a sub-second function as well as options for a 12-hour display and calendar similar to the 281 movement. The ETA 1201 movement was utilized during the approximate period of 1954.