Seiko Cal. 4487 - 931

The Seiko 4487-931 represents an important milestone in Seiko's 1984 lineup. With its 19mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-5836690cab11]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

14.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1984

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