The Citizen 7801A watch movement, developed in 1965, was produced for a brief period around this time. After the U.S. Time Corporation purchased Laco-Durowe in 1959 and subsequently sold it to the Swiss Ebauche SA, the focus shifted solely to mechanical movements. The M82 movement encompassed a range of functionalities including an electromechanically controlled balance motor, sweep second hand, and an electrical hack feature. Notably, the Citizen 7801A movement was utilized in watches during the approximate period of 1965.