Seiko Cal. 7139 - 156

This Spring Drive model from 1975 features a 41mm Stainless Steel case. With its 18mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-07714dfb3c73]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1975

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