Seiko Cal. 7139 - 634

This Automatic model from 1971 features a 34mm PVD Black case. Powered by the 7139 caliber with 27j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-7e4c5709a0bf]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

12.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1971

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