Brand: GRAND SEIKO Model number: SBGE257 9R66-0BB0 Product name: Spring Drive Sports Collection Material: Case: SS/Stainless steel. Glass: Sapphire crystal Size: [Men's]. Arm circumference: about 21.0cm. Weight 171.1g Specifications: Spring Drive. This is one of the sports collections released in the summer of 2020. The matte dark green dial evokes the beautiful forests of Japan. The combination with the glossy bezel of the same color is also a wonderful finish. We use high-strength zirconia ceramics. The multifaceted silver indexes reflect light and shine brightly even under ...