Seiko Cal. 5665 - 159

This Spring Drive model from 1991 features a 39mm Hardlex-Coated Steel case. It features a Black dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-844ca5a7b6a3]

Also known as: Sumo, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

150m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1991

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