Seiko Cal. 6331 - 404

The Seiko 6331-404 represents an important milestone in Seiko's 1980 lineup. With its 22mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-5bdf586807ad]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

White

Jewels

23j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1980

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