Seiko Cal. 6640 - 888

This Kinetic model from 1976 features a 34mm PVD Black case. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-0e9fbdf0f7d8]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

34mm

Case Thickness

15.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1976

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