Seiko Cal. 7139 - 831

The 7139-831 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7139 caliber with 34j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-0d10788cdd21]

Also known as: Shogun

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

42mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Cream

Jewels

34j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1983

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