Seiko Cal. 7157 - 420

The Seiko 7157-420 represents an important milestone in Seiko's 1976 lineup. The Coin-Edge bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-52e09de11ea5]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

12.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Champagne

Jewels

32j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1976

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