Seiko Cal. 6639 - 722

The Seiko 6639-722 represents an important milestone in Seiko's 1971 lineup. With its 19mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-c1aa8e050bac]

Also known as: Sea Horse

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

36mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

19j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1971

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