The Jaeger Lecoultre 480 watch movement is equipped with a pin lever escapement, a ratchet on the dial side, and a crown mechanism with a rocker bar. It shares only minor differences with the 051/0a, 051/0b, 051/0c, 051/0d, 051/0de, 051/0df, and 051/0f variations. This movement offers manual winding functionality and includes a sub-second display. It was primarily used during the period of approximately 1950.