Grand Seiko Watch Mechanical. SBGR061 is very elegant and functional at the same time. It features one peculiar feature, a mechanical automatic drive system that comes with hand winding capability. The timepiece is equipped with 9S65 calibre that has 35 bearing jewels. A 72 hour power reserve is available. The dial features a date display located at the 3 o clock mark. This timepiece is protected from magnetic influences and water penetration. Additional functionalities include blue steel seconds hand, see through screw case back and scratch resistant sapphire crystal glass with anti reflective coating.