Seiko Cal. 7139 - 331

The 7139-331 is a sought-after Solar piece from Seiko's golden era. Powered by the 7139 caliber with 22j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-67181a4db5d3]

Also known as: Golden Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

41mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Green

Jewels

22j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1991

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