Seiko Cal. 5691 - 139

The Seiko 5691-139 represents an important milestone in Seiko's 1975 lineup. With its 19mm lug width and 13.3mm profile, it sits comfortably on most wrists. [seikata-wm-107aad9dc235]

Also known as: Samurai, Tuna

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

13.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Burgundy

Jewels

33j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1975

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