Seiko Cal. 7139 - 718

The Seiko 7139-718 represents an important milestone in Seiko's 1970 lineup. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-ba6fb3258970]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

White

Jewels

34j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1970

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