Seiko KS King Seiko Vanac 5626-7180 1973 King Seiko Vanac is a high grade watch, made by both the Suwa and the Daini branch of Seiko. There is no official explanation as to why they are called Vanac. This line of watches was manufactured between 1972 and 1974 in a number of variations, but all had colorful dials, facetted crystals and angular cases. Model: KS King Seiko Vanac Reference number: 5626-7180 (Vintage) Movement: Automatic Hi-Beat 28,800 bph Case material: Steel Bracelet material: Steel Year of production: 1973 Case diameter: 38 x 42 mm Dial: Brown Glass: Faceted Hardlex glass The quickset of the day-date is NOT working. It is running, but I am unsure about the detailed operation, such as time differences. Please consider it as is. Returns are not accepted to prevent replacement. -Automatic winding -Second hand hacking -Japanese-English calendar -Hi-Beat 28,800 bph -Faceted Hardlex glass