The “snowflake” dial was first used in the Spring Drive SBGA011 in October 2005. Through the case back, Caliber 9R65 expressed the profile of the Hotaka mountain range in the configuration of the gear train and bridge.
The development of the “snowflake” dial started with its designer's zeal to express the beauty of Shinshu on the dial. It echoes the texture of the granular snow created by the extreme cold the designer saw.