Seiko Cal. 5640 - 426

This Kinetic model from 1981 features a 38mm PVD Black case. With its 20mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-be8c197715f8]

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

38mm

Case Thickness

12.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1981

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