Seiko Cal. 4439 - 256

The Seiko 4439-256 represents an important milestone in Seiko's 1978 lineup. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-58f166d42bde]

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1978

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