Seiko Cal. 4564 - 931

This Spring Drive model from 1973 features a 34mm Titanium case. With its 21mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-8df3b2332fa2]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1973

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