Seiko Cal. 7151 - 691

The Seiko 7151-691 represents an important milestone in Seiko's 1966 lineup. With its 18mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-79b184ebec0a]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Silver

Jewels

21j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1966

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