Seiko Cal. 7139 - 639

The 7139-639 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-9a1c2bd6abcb]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Black

Jewels

18j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1986

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