The Citizen 5800 watch movement, introduced around 1972, shares similarities with the 7804A although precise differences are unclear. Equipped with an electronically controlled balance motor, the movement incorporates features such as a sweep second hand, day and date functions that can be adjusted quickly by repeatedly pushing the crown, a hack feature, and multilingual day display. These specifications characterize the 7802A movement, which has been utilized since its introduction in 1972.