Seiko Cal. 6331 - 897

The Seiko 6331-897 represents an important milestone in Seiko's 1966 lineup. With its 18mm lug width and 13.6mm profile, it sits comfortably on most wrists. [seikata-wm-74fb72f13723]

Also known as: Rally, Emperor

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1966

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