Seiko Cal. 4521 - 790

This Spring Drive model from 1987 features a 44mm PVD Black case. With its 19mm lug width and 12.9mm profile, it sits comfortably on most wrists. [seikata-wm-63909c8a6c91]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

White

Jewels

18j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1987

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