Seiko Cal. 6640 - 642

This Kinetic model from 1971 features a 35mm Titanium case. It features a Black dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-10ee1325891a]

Also known as: Monster, Flighty

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

35mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1971

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