The Zenith 410 watch movement features a pin-lever escapement and a sophisticated excenter self-winding mechanism. With just one gear stage, an excenter on the rotor arbor moves a lever, which turns a ratchet wheel via two clicks. The planet differential gear on the dial side transmits the sum of automatic and manual winding to the barrel arbor, resulting in different gear ratios and perfect decoupling of both winding sources. The movement also includes automatic winding, a sweep second hand, day adjustment between 22:30-2:10h, and date adjustment between 22-24h. The Zenith 410 movement was commonly used around 1977.