Seiko Cal. 6638 - 809

The Seiko 6638-809 represents an important milestone in Seiko's 1982 lineup. With its 18mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-488ee28c463e]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Green

Jewels

24j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1982

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