Seiko Cal. 6321 - 438

The Seiko 6321-438 represents an important milestone in Seiko's 1981 lineup. With its 18mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-a0ef89bcf536]

Also known as: Sumo, Flighty

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Black

Jewels

33j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1981

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