Seiko Cal. 3864 - 256

This Solar model from 1967 features a 45mm PVD Black case. With its 22mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-32db96b2833a]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

45mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1967

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