Seiko Cal. 6639 - 156

This Quartz model from 1983 features a 41mm Hardlex-Coated Steel case. It features a Green dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-049a9c80fb98]

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

13.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Green

Jewels

34j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1983

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