Seiko Cal. 6637 - 786

This Quartz model from 1987 features a 43mm PVD Black case. With its 19mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-4a3f5a095cfe]

Also known as: Samurai

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

43mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Green

Jewels

22j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1987

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