Seiko Cal. 5643 - 939

This Kinetic model from 1989 features a 40mm Stainless Steel case. With its 19mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-1e21b7f53c50]

Also known as: Sumo, Crown

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

130m

Dial Color

Silver

Jewels

31j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1989

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