Seiko Cal. 6638 - 535

This Spring Drive model from 1979 features a 46mm Hardlex-Coated Steel case. It features a Cream dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-4897fad87894]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

80m

Dial Color

Cream

Jewels

26j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1979

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