Seiko Cal. 6157 - 742

This Automatic model from 1973 features a 39mm Stainless Steel case. Powered by the 6157 caliber with 25j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-fbb539b1db1f]

Also known as: Monster, Crown

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

9.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Cream

Jewels

25j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1973

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