Seiko Cal. 4446 - 439

The Seiko 4446-439 represents an important milestone in Seiko's 1983 lineup. With its 19mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-501247122805]

Also known as: Sumo, Helmet

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

43mm

Case Thickness

9.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1983

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