Seiko Cal. 5638 - 580

This Solar model from 1981 features a 37mm Gold-Plated case. It features a Green dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-be7c29afef9a]

Also known as: UFO, Silverwave

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Green

Jewels

19j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1981

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