Seiko Cal. 7187 - 531

This Quartz model from 1973 features a 36mm PVD Black case. With its 20mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-30f3037536ea]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

36mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Burgundy

Jewels

32j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1973

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