Seiko Cal. 5638 - 968

This Kinetic model from 1972 features a 40mm Hardlex-Coated Steel case. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-13ef93aaa509]

Also known as: Samurai, Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

13.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1972

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