Seiko Cal. 5633 - 612

The Seiko 5633-612 represents an important milestone in Seiko's 1983 lineup. With its 20mm lug width and 13.3mm profile, it sits comfortably on most wrists. [seikata-wm-5bba98442ca7]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

13.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

Champagne

Jewels

27j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1983

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