Seiko Cal. 6339 - 420

The Seiko 6339-420 represents an important milestone in Seiko's 1979 lineup. With its 19mm lug width and 14.8mm profile, it sits comfortably on most wrists. [seikata-wm-612d9045dde8]

Also known as: Sumo, Crown

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

Champagne

Jewels

17j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1979

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