Seiko Cal. 7157 - 344

This Spring Drive model from 1979 features a 38mm Gold-Plated case. Powered by the 7157 caliber with 31j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-4ef9247d9209]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

8.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

180m

Dial Color

Cream

Jewels

31j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1979

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