Seiko Cal. 7139 - 780

The 7139-780 is a sought-after Hand-Winding piece from Seiko's golden era. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-379cbd2bd96c]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

13.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

White

Jewels

34j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1968

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