Limited edition of 500 pieces grand seiko watch 9f quartz limited edition sbgv019g since the introduction of the worlds first quartz watch in 1969 seiko has constantly led the world in quartz innovation with many world first creations including the first quartz chronograph in 1983 and seiko kinetic in 1988 caliber 9f pushes back the limits of quartz once more and it might just be the best quartz watch ever built