Seiko Cal. 7030 - 381

The Seiko 7030-381 represents an important milestone in Seiko's 1974 lineup. With its 21mm lug width and 12.0mm profile, it sits comfortably on most wrists. [seikata-wm-7fad570cff5d]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1974

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