Seiko Cal. 3831 - 396

The Seiko 3831-396 represents an important milestone in Seiko's 1976 lineup. With its 21mm lug width and 11.1mm profile, it sits comfortably on most wrists. [seikata-wm-db7e6e6059b1]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Green

Jewels

33j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1976

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