Seiko Cal. 6638 - 231

This Kinetic model from 1979 features a 44mm Gold-Plated case. With its 20mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-6943e2b5b4ce]

Also known as: Monster

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1979

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