Seiko Cal. 7139 - 878

The 7139-878 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7139 caliber with 36j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-18bbb4ccb50b]

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

14.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Green

Jewels

36j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1969

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