Seiko Cal. 4437 - 901

This Hand-Winding model from 1982 features a 43mm Stainless Steel case. With its 18mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-e2f14d7ee844]

Also known as: Sumo, Shogun

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

8.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1982

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