Seiko Cal. 7021 - 904

The Seiko 7021-904 represents an important milestone in Seiko's 1978 lineup. With its 21mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-4142ae8e5770]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

42mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1978

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