Seiko Cal. 5639 - 552

This Quartz model from 1974 features a 40mm Hardlex-Coated Steel case. It features a Champagne dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-64c6b8a9167a]

Also known as: UFO, Emperor

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Champagne

Jewels

26j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1974

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