The authentic successor to the design of the first Grand Seiko Spring Drive. The GS logo mark is displayed at the 12 o'clock position. The power reserve is about 72 hours when wound to the maximum. The power remaining in the mainspring can be confirmed through the power reserve indicator. It carries a Calibre 9R65 movement which can be observed through the exhibition case back. Automatic winding Spring Drive, 41.0 mm case in stainless steel.

Spring Drive is a unique technology that sets a new standard for the wrist watch industry. It is also a platform that offers great future potential. From just one calibre back in 2004, there are already no fewer than 5 different Spring Drive movements and more are sure to follow. The Spring Drive journey has only just begun.

The first Spring Drive calibre, 9R65, was a three hand calendar movement. Soon after a GMT calibre, 9R66, was developed followed by Calibre 9R86 which added a chronograph to the functions of its predecessors.

After the 9R86 chronograph came a remarkable creation from the luxury watch craftsmen at the renowned Micro Artist Studio. It was the 8 day Spring Drive calibre 9R01. It demonstrated the almost unlimited potential of this remarkable technology and points the way towards a future where innovation, imagination and potential will deliver watches that will, once again, redefine what a luxury watch can be, just as Akahane always dreamed.