Seiko Cal. 5681 - 837

The Seiko 5681-837 represents an important milestone in Seiko's 1980 lineup. With its 19mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-0df35f927f2f]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

22j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1980

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