King Seiko 56KS 5621-7021
While most of the King Seiko watches were produced by the Daini factory, 56KS was produced by the Suwa factory instead and it shared the Cal.56XX movements with 56GS (56GS was adjusted to be more accurate though). This 56KS here is rare due to the absence of date/day display, and it creates a symmetric and simple dial which is best for minimalists.
Year: Apr 1973
Diameter (excluding the crown): 36mm
Caliber: Original Cal.5621B automatic movement
Accessories: Watch only
Service History: Unknown. Second hand continues moving while setting time