Seiko Cal. 6639 - 944

The Seiko 6639-944 represents an important milestone in Seiko's 1975 lineup. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-1122fff310df]

Also known as: Samurai, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Silver

Jewels

34j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1975

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