Seiko Presage Sharp Edged Series Limited Edition Spb331Presage Sharp Edged Series Limited Edition. Offering the finest in Japanese mechanical watchmaking, the Presage Collection blends precision technology with superior craftsmanship and design. This extraordinary Limited Edition from the Sharp Edged Series, available only in a controlled production run of 2,000, with the serial number engraved on each caseback, roots the fresh, clean angularity of contemporary Japanese design in a deeper tradition,