Seiko Cal. 6638 - 533

The Seiko 6638-533 represents an important milestone in Seiko's 1985 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-01f716ce3d03]

Also known as: Monster

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

35mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1985

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