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Return To ShopThe Citizen 4-020031 watch movement, introduced in 1973, is equipped with a hack mechanism that stops the balance in a position which ensures reliable starting when the crown is pushed. It integrates various functions, including an electromechanically controlled balance motor, a sweep second hand, day and date display, and a hack feature. This movement has been utilized from 1973 onwards.
The Citizen 4-020031 features the following functions:
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