The Dugena 3806 is a manual wind mechanical watch movement that features a sweep second hand. It incorporates a Breguet hairspring and combines settings for the escape wheel. Some later samples of the movement are equipped with a ring balance. Different variations of the movement exist, which may include differences in the regulator hand length, number of crown-wheel screws, number of balance screws, presence of recesses for casing screws, and the use of either Incabloc or Poljot shock devices. The Dugena 3806 movement was commonly used in watches produced around 1965.