Seiko Cal. 5639 - 627

The Seiko 5639-627 represents an important milestone in Seiko's 1974 lineup. With its 22mm lug width and 13.0mm profile, it sits comfortably on most wrists. [seikata-wm-a245ec16eb39]

Also known as: Silverwave

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

13.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Cream

Jewels

32j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1974

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