The Grand Seiko Tsuki Tenshin High Moon is inspired by the gentle light of the moon in the night sky. While the surface is serene with its sunray style engraving in deep blue and time only functions, under the surface (though not of this particular non-working display model) the Spring Drive calibre 9R31 works away with frenetic energy. It’s the balance of artistry and function that Grand Seiko are famous for. . . . . #GrandSeiko #Horology #Seiko #HighMoon #SpringDrive #WatchReview #GrandSeikoWatch