Seiko Cal. 3891 - 870

This Spring Drive model from 1976 features a 46mm Stainless Steel case. With its 21mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-620c295cd472]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1976

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