The Lemania 8812 watch movement, produced between 1955-1960 as part of the 470, 490, and 500 families, had a total production count of 1,075,000 units. It featured a detached manual wind mechanism and was partially used as chronometers. The movement included functions such as automatic winding, sweep seconds, and a calendar with date adjustment done by changing the 23-24 hour setting.