Seiko Cal. 7139 - 930

The 7139-930 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7139 caliber with 18j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-7dba01a94d29]

Also known as: Goldfeather, Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Burgundy

Jewels

18j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1974

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