Grand Seiko Evolution 9 Hi-Beat Tentagraph Watch, 43.2mm Blue Dial, SLGC001In the pursuit of the the ideal chronograph, the Tentagraph was born: with TEN beats per second, a Three day power reserve, Automatic self winding, and all wrapped up in a chronoGRAPH movement of unparalleled accuracy. The Evolution 9 Tentagraph watch dial features the iconic Mt. Iwate pattern. Inspired by the texture of the imposing Japanese summit as it can be seen from the Shizukuishi watchmaking studio.