Grand Seiko 56GS 5641-7000
56GS was the last generation of vintage Grand Seiko. Right after Seiko issued the 61GS, there was a need to build the ultimate daily watch that could be used for decades, so there were some majors changes. For example, the movement was redesigned to be thin and compact, making 56GS the slimmest automatic Grand Seiko at that time. As for the design of the case, it was inspired by pebble, a common material used to decorate Japanese gardens.
Year: Dec 1970
Diameter (excluding the crown): 36mm
Caliber: Original Cal.5641A automatic movement
Accessories: Service receipt
Service History: Serviced by previous owner in Aug 2021