Seiko Cal. 5691 - 140

The Seiko 5691-140 represents an important milestone in Seiko's 1985 lineup. With its 18mm lug width and 14.0mm profile, it sits comfortably on most wrists. [seikata-wm-ba54e3af2405]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

14.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1985

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