Seiko Cal. 4427 - 827

This Spring Drive model from 1966 features a 45mm Titanium case. With its 21mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-f0122f395ef7]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1966

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