Seiko Cal. 5681 - 158

The Seiko 5681-158 represents an important milestone in Seiko's 1966 lineup. With its 21mm lug width and 14.5mm profile, it sits comfortably on most wrists. [seikata-wm-faae0d9c3cd4]

Also known as: Crown, Baby Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

14.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Champagne

Jewels

17j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1966

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