Seiko Cal. 4422 - 728

This Kinetic model from 1967 features a 40mm Hardlex-Coated Steel case. It features a Cream dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-ba8954251691]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

28j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1967

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