Seiko Cal. 7021 - 284

This Spring Drive model from 1990 features a 44mm Stainless Steel case. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-1efe3f066eb3]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1990

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