Seiko Cal. 4431 - 723

The Seiko 4431-723 represents an important milestone in Seiko's 1992 lineup. With its 18mm lug width and 12.0mm profile, it sits comfortably on most wrists. [seikata-wm-37875bacb27f]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1992

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