The Seiko caliber 5206A belongs to the 52 or 5200 family of calibers and was primarily featured in Daini Seikosha produced Lord Matic watches during the early 1970s. This vintage automatic watch movement features an analog display and a day/date calendar complication located at 3:00. The movement includes central hours, central minutes, and central sweeping seconds hands. Additionally, it incorporates a bi-lingual day/date display.