Seiko Cal. 7131 - 196

This Spring Drive model from 1990 features a 44mm Hardlex-Coated Steel case. With its 21mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-d74ded0c62e7]

Also known as: Bullhead, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Silver

Jewels

23j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1990

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