Seiko Cal. 5631 - 536

This Kinetic model from 1977 features a 42mm PVD Black case. With its 18mm lug width and 13.2mm profile, it sits comfortably on most wrists. [seikata-wm-09a05dc737ba]

Also known as: Sportsmatic, Crown

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

42mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1977

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