Seiko Cal. 6181 - 871

This Hand-Winding model from 1974 features a 39mm Stainless Steel case. With its 19mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-746ea0f52a5e]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

12.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1974

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