Seiko Cal. 5643 - 159

This Spring Drive model from 1971 features a 43mm Stainless Steel case. With its 20mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-db4ef56709ff]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

14.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1971

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