Seiko Cal. 4437 - 722

This Automatic model from 1981 features a 46mm PVD Black case. With its 18mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-bc5c8fb2072a]

Also known as: Shogun

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

46mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1981

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