The Hamilton 79 watch movement was produced from 1972 to 1984, with a total of 110,000 units manufactured. This movement is a certified chronometer that features an integrated automatic gear, eliminating the need for attachment to a manual-wind calibre. The design allows for a robust rotor bearing within the center space, despite its low profile. Additionally, the movement offers various functions, including automatic winding, a sweep second hand, a quickset date feature, a hack feature, Incabloc Shock Protection, stop seconds function, and a calendar with quickset.