Seiko Cal. 6640 - 301

This Quartz model from 1989 features a 37mm Gold-Plated case. It features a Black dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-3c0773bf7b8f]

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1989

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