Seiko Cal. 5638 - 682

This Spring Drive model from 1980 features a 34mm Titanium case. With its 22mm lug width and 14.0mm profile, it sits comfortably on most wrists. [seikata-wm-b73ce1da0581]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1980

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