Seiko Cal. 6637 - 970

This Quartz model from 1987 features a 35mm PVD Black case. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-52e4a6c87eb8]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

35mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1987

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