Seiko Cal. 5621 - 158

This Spring Drive model from 1976 features a 34mm PVD Black case. With its 21mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-d3ee1a79f953]

Also known as: Helmet, Rally

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1976

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