The Enicar 1146C watch movement, introduced in 1957, is a modification of the Peseux 336 base movement. It is an automatic movement with two roller freewheels and a jewel-bearing rotor. The automatic function is integrated as a module on top of the base movement. The movement incorporates several functions, including a sweep second hand, a calendar with the ability to set the date by +/- 24 hours, and automatic winding. The Enicar 1146C movement has been utilized in watches since its introduction in 1957.