Seiko Cal. 4420 - 821

This Automatic model from 1984 features a 46mm PVD Black case. With its 20mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-288eb27eb8c4]

Also known as: Shogun, Silverwave

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

46mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1984

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