Model name GRAND SEIKO HERITAGE COLLECTION Ref NoSBGA211 SizeMen's Case diameter 41mm Index bar BeltBracelet Color white Dial Guilloche Material TI Bezel Movement Automatic Specifications / Notes Master Shop Limited Edition Water resistant to 100m "Caliber 9R65 with a power reserve of approximately 72 hours This model is equipped with Spring Drive, a spring-loaded movement with the same high precision as quartz movement. The case is made of bright titanium, which is highly resistant to scratches and corrosion and extremely lightweight. The dial is commonly called "Shinshu's Snow White Dial", which is an image of the surface of snow falling on the Hotaka mountain range. Due to the characteristics of the movement, repairs for this product will be handled by the manufacturer.