Seiko Cal. 6621 - 290

This Automatic model from 1983 features a 36mm Two-Tone case. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-88c8822e63f2]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1983

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