Seiko Cal. 6655 - 179

This Spring Drive model from 1976 features a 35mm Stainless Steel case. It features a Green dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-7e176db4000b]

Also known as: Sumo, World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

15.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

130m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1976

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