The SBGC203 is the most complex Grand Seiko ever made and combines many different functions with the highest possible level of craftsmanship. It uses the 9R86 spring drive, Grand Seiko’s most sophisticated movement, which has chronograph, GMT, date and power reserve complications. As a result, it’s just as incredibly accurate as any other spring drive but has a much higher degree of functionality. As if that weren’t enough, the 9R86 is also Grand Seiko’s most beautiful movement.
The SBGC203 is the new version of the SBGC003.
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