Seiko Cal. 5644 - 926

This Kinetic model from 1979 features a 40mm PVD Black case. With its 19mm lug width and 12.9mm profile, it sits comfortably on most wrists. [seikata-wm-93da5f229f5b]

Also known as: Helmet, Emperor

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

40mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Silver

Jewels

27j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1979

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