Seiko Cal. 7139 - 538

The 7139-538 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-02b29391ed3e]

Also known as: Rally

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Cream

Jewels

20j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1971

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