Seiko Cal. 3887 - 586

This Spring Drive model from 1976 features a 37mm Gold-Plated case. It features a Black dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-0eb911f15520]

Also known as: Sumo, Silverwave

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1976

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