Seiko Cal. 5683 - 556

The Seiko 5683-556 represents an important milestone in Seiko's 1968 lineup. With its 21mm lug width and 12.0mm profile, it sits comfortably on most wrists. [seikata-wm-4c65b67905c4]

Also known as: Monster, Baby Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Black

Jewels

22j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1968

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