Seiko Cal. 4564 - 643

This Kinetic model from 1981 features a 37mm Titanium case. With its 22mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-510336dbb013]

Also known as: Sumo, Helmet

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

37mm

Case Thickness

14.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

40m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1981

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