Seiko Cal. 3874 - 645

This Solar model from 1979 features a 39mm Stainless Steel case. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-13a82e4b25fa]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1979

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