Seiko Cal. 4438 - 568

This Kinetic model from 1970 features a 38mm Hardlex-Coated Steel case. Powered by the 4438 caliber with 24j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-8e5a937b289b]

Also known as: Monster, Helmet

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

8.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1970

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