Seiko Cal. 7157 - 139

The Seiko 7157-139 represents an important milestone in Seiko's 1971 lineup. The Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-4025fce84fbc]

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

34mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1971

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