Seiko Cal. 7020 - 421

The Seiko 7020-421 represents an important milestone in Seiko's 1988 lineup. With its 19mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-5b9488f469e6]

Also known as: Shogun, Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

29j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1988

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