Seiko Cal. 6631 - 798

This Kinetic model from 1973 features a 40mm Stainless Steel case. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-18a1d5856479]

Also known as: UFO

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Cream

Jewels

24j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1973

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