Seiko Cal. 6639 - 351

The Seiko 6639-351 represents an important milestone in Seiko's 1993 lineup. With its 21mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-4230a53014b8]

Also known as: Samurai

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

34mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Black

Jewels

18j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1993

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