Seiko Cal. 3890 - 347

This Spring Drive model from 1974 features a 36mm Stainless Steel case. With its 22mm lug width and 8.3mm profile, it sits comfortably on most wrists. [seikata-wm-18a23478cfc1]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

8.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

110m

Dial Color

Green

Jewels

19j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1974

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