The Unitas 285 watch movement, manufactured around 1965, features a combination of settings for the escape wheel and indirectly driven minute, enabling a significant balance size. Notably, the cannon pinion is relatively thick due to its idle run on a fixed tube, carrying a jewel bearing for the second-hand arbor. An unconventional feature is the winding gear located on the dial side. Additionally, this movement offers functionalities such as manual winding, sweep seconds, and shock protection.