Seiko Cal. 5650 - 989

This Spring Drive model from 1971 features a 44mm Hardlex-Coated Steel case. It features a Green dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-31dbeae89c45]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1971

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