Seiko Cal. 4422 - 728

Seiko 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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seikata-wm-ba8954251691