Seiko Cal. 6636 - 973

The Seiko 6636-973 represents an important milestone in Seiko's 1981 lineup. With its 21mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-f7045267fbf4]

Also known as: Samurai, Goldfeather

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

43mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1981

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