Seiko Cal. 6687 - 251

This Kinetic model from 1977 features a 37mm Gold-Plated case. With its 20mm lug width and 14.1mm profile, it sits comfortably on most wrists. [seikata-wm-c92f39cbca3d]

Also known as: Sumo, Bullhead

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

14.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

32j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1977

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