Grand seiko watch 36000 high beatsbgh201 this10 beat caliber 9s85 surpassed the original encapsulating the past 41 years with high precision parts created using sophisticated modern technology assembled using skills inherited from the mastersinnovations to the precision controlling mainspring the hairspring and the escapement mean that the 9s mechanical is not simply a revival of the 10 beat movement of the past but its rebirth as a high precision movementthe accurate workings are ens