Seiko Cal. 6638 - 811

This Kinetic model from 1981 features a 36mm Hardlex-Coated Steel case. It features a Black dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-ceb70911540a]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1981

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