Seiko Cal. 6656 - 178

This Kinetic model from 1979 features a 37mm Stainless Steel case. It features a Navy dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-fb15f5c19bc7]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

35j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1979

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