Grand Seiko Watch Mechanical Hi Beat SBGH001J. If you are looking for a timepiece that features extreme craftsmanship and accuracy, the Grand Seiko SBGH001 is the right one for your needs. The watch is equipped with 9S85 calibre that performs 36 000 vibrations per hour and has 37 bearing jewels. This timepiece has a 55 hour power reserve. It is protected from water penetration and magnetic influences. A date window is positioned at the 3 o clock mark. Additional functionalities include a blue steel second hand, a screw down crown, see through screw case back and scratch resistant sapphire crystal glass with anti reflective coating.