Seiko Cal. 4428 - 936

This Kinetic model from 1973 features a 39mm Hardlex-Coated Steel case. It features a Silver dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-6c583291e68e]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Silver

Jewels

29j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1973

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