The Eterna 1459K watch movement, utilized during the period of 1972-1981, features an AS2 lever regulator. Early samples operate at a frequency of 28,800 A/h, and were specifically designed for the Ocean Star collection. This movement offers a range of functions including automatic winding, sweep seconds, day option, date quickset through repeated crown pushing, and a hack feature. Additionally, it is equipped with an adjustable stud holder for enhanced accuracy.