Seiko Cal. 6231 - 712

This Automatic model from 1985 features a 37mm Hardlex-Coated Steel case. With its 19mm lug width and 12.0mm profile, it sits comfortably on most wrists. [seikata-wm-bf2bfd222f1d]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

12.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1985

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