Seiko Cal. 5638 - 789

The Seiko 5638-789 represents an important milestone in Seiko's 1980 lineup. With its 20mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-8fc9852cca53]

Also known as: Goldfeather

Specifications

Movement

Solar

Case Material

Titanium

Case Width

44mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1980

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