Seiko Cal. 7139 - 107

This Quartz model from 1971 features a 39mm Two-Tone case. Powered by the 7139 caliber with 31j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-f3e416cd73f1]

Also known as: Goldfeather, Flighty

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

39mm

Case Thickness

10.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1971

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