Seiko Cal. 5628 - 639

The Seiko 5628-639 represents an important milestone in Seiko's 1988 lineup. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-a891a7e84067]

Also known as: UFO, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

110m

Dial Color

Green

Jewels

20j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1988

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