Seiko Cal. 5638 - 881

This Spring Drive model from 1978 features a 35mm Stainless Steel case. It features a Black dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-2178072608ed]

Also known as: Goldfeather, Arnie

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

13.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1978

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