Seiko Cal. 7139 - 190

The Seiko 7139-190 represents an important milestone in Seiko's 1975 lineup. Powered by the 7139 caliber with 29j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-f8911ac182cb]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Black

Jewels

29j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1975

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