Seiko Cal. 7139 - 403

The Seiko 7139-403 represents an important milestone in Seiko's 1970 lineup. With its 21mm lug width and 14.1mm profile, it sits comfortably on most wrists. [seikata-wm-8057f49d21a8]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Black

Jewels

22j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1970

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