Spring Drive U.F.A Evolution 9The pursuit of high accuracy has been the cornerstone of Grand Seikos values since its first watch was created in 1960. In the late 1970s, the development of Spring Drive beg an with an aim to harmoniously blend the traditional energy of a mainspring with state of the art electronic watchmaking advancements. In 2004, Grand Seiko introduced the Spring Drive Caliber 9R65 with a monthly rate of 15 seconds. Today, this legacy of accuracy in watchmaking