The ultimate King Seiko for many people is labeled "chronometer" and has a golden seal on the back. It is a rare occasion then to come across a well preserved King Seiko Superior Chronometer 5626-7030, with a full size original bracelet.
Later production runs of the 5626-7040 non superior chronometer, while keeping the monobloc case designs and case numbers, lost the seal, substituting an engraved “KS” roundel instead. Pity the poor Japanese businessman, who, probably sometime in 1972, was gifted a later example 5626-7040 as a retirement present and discovered that it lacked the coveted gold medallion! This Superior Chronometer 5626-7030 however is from 1969 and thus retains its golden seal.