Seiko Cal. 6157 - 938

The Seiko 6157-938 represents an important milestone in Seiko's 1972 lineup. Powered by the 6157 caliber with 27j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-716be7d7915e]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1972

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