A high beat movement with an 80 hour power reserve
In 1998, the creation of the 9S mechanical movement opened a new chapter in the Grand Seiko story. In 2020, the sixtieth anniversary of the first Grand Seiko, the pages turn again with a new high beat mechanical caliber, 9SA5 which, in its design, technology and functionality represents an advance just as important as the first 9S. Nine years in development and deploying all the skills and experience that Grand Seiko has gained over the past 60 years, 9SA5 is the finest mechanical movement that Grand Seiko has ever created.
Speaking about the early days of the project, Caliber 9SA5’s designer, Hisashi Fujieda, recalled “Our aims were to achieve high accuracy and long-lasting performance, and to bring about a revolution in mechanical watches.”
Fujieda described the nine year process that started with the conception of this aim and lead to its realization.
