Seiko Cal. 5627 - 637

The Seiko 5627-637 represents an important milestone in Seiko's 1978 lineup. With its 21mm lug width and 14.0mm profile, it sits comfortably on most wrists. [seikata-wm-fb5b31b2866c]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

14.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

Champagne

Jewels

19j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1978

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