Seiko Cal. 6640 - 905

This Quartz model from 1979 features a 37mm Gold-Plated case. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-cb8aea6c4711]

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

190m

Dial Color

Champagne

Jewels

36j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1979

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