Seiko Cal. 0731 - 522

This Quartz model from 1991 features a 37mm PVD Black case. With its 18mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-9498b45fb56d]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Silver

Jewels

18j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1991

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