Seiko Cal. 4431 - 717

This Quartz model from 1988 features a 42mm Hardlex-Coated Steel case. With its 18mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-a3667676bca0]

Also known as: Sportsmatic, Emperor

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1988

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