Seiko Guido 5a74 movement is meticulous in workmanship. The movement is mainly made by Timely. In the middle and late period, some machines are added and wound manually, which is very ornamental.
After Credor Guido 1969 was born, Seiko Company launched a series of "selected watches" using metals such as 18K gold and 14K gold in order to meet people's demand for high-grade watches. Moreover, in 1974, a collection of "Selected Wristwatches" was combined and named "Seiko CREDOR".