In the 1960s, King Seiko timepieces led Seiko Watch Corporations developments in world-leading technical precision, along with Grand Seiko. King Seiko originated when multiple Seiko factories created different watches to encourage innovation one of the Japanese watch brands constant aims. This version is updated from its original inspiration with a newly developed slim structure combined with a sapphire box glass, for a case depth of 10. 33mm, the slimmest of 6R calibre models. It features a King Seiko crest mark on the crown and caseback and the bracelet is inspired by the original 1960s design through a combination of mirror and hairline finishing. The delicately cut three-dimensional indices are beautifully placed on the fine and radiant dial and the 12 o clock marker is lightly finished by a pattern technique of making just one single surface incision at a time.