Grand seiko watch quartz seiko is a pioneer in the world of quartz watch making and grand seiko sbgx063 is the proof of that claim the timepiece comes with 9f62 quartz calibre that is powered by a battery the battery can run approximately three years before a replacement is needed the watch is water resistant and protected from magnetic influences a date window is positioned at the 3 o clock mark hands mark hours minutes and seconds additional functionalities include solid screw case bac