Seiko Cal. 6638 - 164

This Spring Drive model from 1988 features a 46mm Hardlex-Coated Steel case. With its 18mm lug width and 14.1mm profile, it sits comfortably on most wrists. [seikata-wm-d0a317dc20ca]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Burgundy

Jewels

26j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1988

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