Presage Sharp Edged Series es una colección que combina la alta
relojería mecánica de Seiko con una nueva perspectiva de la cultura de
Japón.
SPB311J1 incorporates the caliber 6R38 automatic sight machine.
Like all existing watches in this series, the dial features the Asanoha,
or hemp leaf pattern, which has been used on Japanese fabrics since the
Heian period over a thousand years ago, and is in a traditional Japanese
color "Aisumi", indigo blue.